Backstamps for the gallery: Coronation Loving Cup remarked for the Royal Visit?

I could not find any Goronation backstamps in the gallery.

These two Crown Lynn Coronation Loving Cups have different base stamps.

The photo shows the front of Coronation cup .340. (ctr) and the back of cup .638. (r).
The transfers are the same on the bodies of the two cups but the base stamps differ.


The later cup is measurably smaller in top and bottom diameters and height,
each by about 1-1.5mm. As seen from the shadows it has a much deeper base.

The stamp on the earlier cup .340. matches that of the castware Coronation mug (l) but is a different colour.

Thanks Jeremy as I didn't know that there were two versions of the Loving Cup and I will add all three of the backstamps to the Gallery.

Ev, the only real difference is in the basemark.

SIZE
In mentioning the minor size differences I was only intending to show the variations that could expected from handpotted pieces within a run of 1000. The 1-1.5 mm differences were totally expected, but the extent of the difference in (internal) base depth (7mm vs 10.5), which I only noticed when I saw the different shadows on two pieces photographed in the same place in the same light, was not. I have read here reported comments by Steenstra (I think) that he was surprised by the degree of finishing on Shufflebotham's handpotted shapes. That finishing work may also contribute to size variations. As a non-potter I have no explanation to offer for the differences in internal base depth.

For the record, number 340 measures 118mm H (excluding handles) x 103 OD top x 100 OD base. I don't necessarily expect anyone else's measurements to be an exact match because different people and different measuring devices will give different results. Anne gives the body height of her .868. as 115. The measurement's for two Portage holdings are "H 135 [overall] W 194 [overall] d 103mm" (number 1?), and "H 112 d 98mm" (number 164?). Portage has at least one other example as there are two complete cups in their display cabinet.

http://www.nzmuseums.co.nz/account/3384/object/488457
http://www.nzmuseums.co.nz/account/3384/object/490449
https://www.newzealandpottery.net/t6234-portage-ceramic-trust-museum-breaking-news#24850

OTHER POINTS OF DIFFERENCE
Each loving cup has an obvious point of difference in the body of each piece is handpotted and marked with a unique number. On the forum we have pictures of three variants of the loving cup now. The two I posted with the different basemarks and Nickg and Anne's examples which appear to be glazed but have no transfers:
https://www.newzealandpottery.net/t294-nickg-s-handpotted-loving-cup#769

The standout "unique" example of course, held by Portage and on display at their museum, is the signed number 1.

HOW AND WHEN THEY SOLD
The use of the alternative base transfer suggests to me that the 1000 did not sell immediately (in commemoration of the coronation) and that Crown Lynn took the opportunity of the Royal Visit to sell some more.

Anne's clear-glazed one (without transfers) is 868. It would be interesting to see later examples. Would they too have no transfers and be identifiable only by shape and individual number? (ie no Crown Lynn marks.)

MORE INFO NEEDED
Anne, haselnuss, would you be able tell us your (other) numbers and add any further points of difference.

Also see Stewart's cup number 21 at:
https://www.newzealandpottery.net/t3071-hand-potted-coronation-love-cup#9574
Some photos have gone.

Hand potters use measuring sticks to control the outside measurements, nothing for
the inner measurements as far as I'm aware.
The gold lustre requires another low temp firing and the decals can be included in that firing too, so anything is possible here.

Ok so these are called Throwing Gauges in the US and note the inner one ...
http://ceramicartsdaily.org/clay-tools/throwing-tools/all-about-throwing-gauges/