What do the numbers on Vitrified and Supervitried ware represent? Answer - The Year made!

Just to recap what we have discovered so far and this would be the numbers on the vitrified and super vitrified wares. I will list them and add to them when more turn up. What is interesting is the fact that there are very low numbers and then a huge gap to very high numbers.....?

2-SV
3-SV
6-V+SV
7-V+SV
8-V
9-SV
70-SV
71-SV
72-SV
73-SV
74-SV
75-SV
76-SV
77-SV
78-SV
79-SV
80-SV
81-SV
82-SV
83-SV
84-SV
85-SV
86-SV
87-SV
88-SV
89-SV
Edits:
Thank you Marl for all of those numbers!! If anyone has anymore please note them in this thread.
Only 2 so far that just have Vitrified on the backstamp? All of the others have super vitrified ....

Hi Jonno, on the same page as the supervit backstamp which was in use from 1970 according to Monk, there is the much earlier script backstamp Crown Lynn Vitrified which was used from 1948 to 1955. If your RNZAF plate had been produced pre 1953 surely it would have had the earlier backstamp. just another thought, i am pretty much convinced that the numbers 70 to 89 are years of manufacture, not sure about the lower numbers though.cheers, Marl

The year of manufacture is unlikely to be the answer as CL closed down in May 1989
so that would mean that 87 & 88 would have been just before they closed?

Yes but they could well have been producing up until just before closure.

I have been hunting for this photo in my files. Going by Monk this is a pre 1955 backstamp and the plate is a very early shape, I would have expected an Airforce plate of the same vintage to be a similar shape, with the early backstamp. Cheers, marl

A thread on the Collectors Forum on Trademe is asking about this very same question ....
http://www.trademe.co.nz/Community/MessageBoard/Messages.aspx?id=890520&topic=16
I'm watching it with bated breath .... and I checked Gail Henry and Val Monk re the Super Vitrified mark that was being discussed and they both said that it was used from the 1970's+ . Now why didn't I think of looking before

so what about the low numbers being 196- and the high 19-- ?

and manufacturing continued into 1989 with glost grading carrying on until almost the very end - the glost drading work rosters from the last fortnight are in a post somewhere here.

Here is your post about the final days Tony ...
http://newzealandpottery.forumotion.net/t562-crown-lynn-the-final-days?highlight=final

Ok I have an idea to try to prove that the numbers are the year of manufacture.
In the Summer issue of the 1978 Ceramics Crown Lynn magazine there is a photo and an article about the wares that will soon become the standard hospital range.
This is the pattern ..


Marl has added three pieces from this range with the numbers 79, 86, and 87.
mrnarna has a mountain of this range so I hope he will check his numbers too, as so far it fits the time frame. I will use mrgoogle to see what I can find, as I only have one cup in this pattern.

okay so i have the ILT range in two different patterns the earlier and the latter which was just the ILT logo in letters.
the older patterned set has the following numbers. 71, except for the "vitrified" items which are 7,saucer 8, bowl.

the later items have 79 , 81 and are all sup/vit.

My Invercargill city council dinner plates and saucers are numbered 71 for dinners plates and 83 for saucers thats a 12 number gap and if we are looking at year of manufacture a huge gap between runs.

more to follow as it is unearth for packing for the big shift.

The lower numbers bother me ..... What do they stand for? Why are there low numbers?
Perhaps you haven't found all of the pieces that are out there narna to fill in those gaps?
Still pondering.... wondering ... and I have looked up Alan Tophams ph number ..... too busy to call atm.

And so the puzzle continues, but first I can confirm that the RNZN Plate is 1950's, spoke to an old matelot I know today and for those who are puzzled about the Insignia, an entwined WR, it stands for Ward Room where the Officers dine, curiously the same comment about the RNZAF plate which was also for Officers.
The History Curator at Te Papa has confirmed that their sample YMCA plate which is similar to the RNZAF sample would have been made in the 1950-70 era and have changed their data. The back stamp is CL Vitrified as in Monk Page 156 2nd to last in row two (1960's Estimate) Not 100% conclusive but some help.The back stamp shows the number 8 in this instance.

More confusion though when I look through my Pioneer collection.
Oval Entree Plates 85,86,87 and Pioneer D877 for example.
All are Super Vitrified but all have slightly different measurements except 87 & the Pioneer example which are exactly the same in all respects.
85 is 227X149X25.5mm,
86 is 223X147X22.2mm
87 is 225X148X23.5mm (as is the Pioneer sample)
All above in Pioneer Honey Brown glaze and at a casual glance they are all the same except that they don't stack nicely.

I also have a Dinner plate 220mm Dia stamped 87 same as the Police/RNZAF plate
My sample of the Hospital design is a Dinner Plate 225mm and is stamped 85 SVW the same number as the Oval Entree above.
It is possible that 85 & 86 Ovals were discontinued and those numbers became available so 85 was used for the Hospital plate but that doesn't answer the multi use of 87
Hope this is helpful, will keep searching and thinking and wondering .


as well as the coffee set I have uploaded, yesterday I grabbed (purely for this research) two SV side plates both identical in every-way except for the visible scuff marks and wear and tear they are 74 for the scruffier one and 84 for the more pristine one.

the backstamps are quite different as well.

Commercial wear like this would have been made regularly over many years I would have thought, hence the 2 numbers for 2 different years. cheers, marl

So is it safe to say we are close to calling this and stating the numbers refer to year of manufacture.

the jury is still out.

mrnarna wrote:So is it safe to say we are close to calling this and stating the numbers refer to year of manufacture.

the jury is still out.

No sorry I can't go with the year of manufacture am more convinced that it relates to the mold shape used to make the piece of flatware.

Remember that wee are only looking at VW & SVW flatware which whilst an important part of CL's production and was mainly sold through the Govt Stores Board it is only a fraction of their total output which was domestic ware which had a Pat.No.or D No. but could have used the same mold shape as the numbered piece.
There are exceptions such as the Hospital Ware design but much of the this ware was not decorated and so the actual shape design would have been hard to determine on a casual glance hence the number system.

The missing numbers could well have been assigned to domestic decorated ware shapes but not shown on the back stamp but well known in the sales and production departments. For instance Apollo range has no numbers of either type but is easily recognised because of the coggled rim. On the other hand Pioneer D877 oval Entree
is exactly the same shape as one simply marked as ' CL SVW New Zealand 87'

I am sorry as well, I am with mrnarna on year of manufacture. Attached are some pics of multiple different shapes all with the same number. Cheers, marlrlg][/url] the 2nd pic is of number84s. something went wrong with my upload.

I'm still sitting on the fence about the number....
Marl's photos prove to me that the number doesn't represent the pattern number or the shape number.
This auction clearly shows that it can't be the pattern number as it already has one....
http://www.trademe.co.nz/pottery-glass/porcelain-pottery/crown-lynn/plates-platters/auction-429411324.htm
It has a low Super Vitrified number - 9 .... please check your Reflections pieces for numbers everyone!

I checked my piece of Reflections and all of the pieces on Trademe that show a backstamp and all are the same as the auction in the last post ..... Super Vitrified 9 .....
If the number stood for the year, you would think that there would be some variation in the number ... huh? Mine also has RAC impressed on the base ....?

Ev phone Alan Topham or Chris Whatsit at Studio Ceramics and end the mystey in a few minutes.

I don't have any Reflections samples but I do have a Cereal Bowl , Plain White 9.
Backstamp in Green, Crown Lynn New Zealand top half of circle and Super Vitrified
bottom half of circle. A Crown with a line under in circle and the number 9.
The diameter is 185mm and the details of the under side is different to the sample shown on Trade Me.

Still unable to post photos.

all my sup/vit reflections have 9

My one Supervit Reflections has 9 and the pattern name and number. I have also got Mode, Mayfair and Trentham, see pics.cheers, marl I do so love a puzzle!!
I think the lower numbers may mean something completely different from the 70-89.

TonyK wrote:Ev phone Alan Topham or Chris Whatsit at Studio Ceramics and end the mystey in a few minutes.

Yes I will when I get a chance Tony ..just overloaded atm ... can log in on the pc in the lunchroom at work BOOM BOOM!!!... in the meantime we keep on truckin.