Numbered 1115 and 1116 seashells 100-110mm

My partner who was a crazy NZ pottery collector found these two sea shells in a store the other day and feels like they may be Crown Lynn /Ambrico specials,colonial NZ, possibly because of the feel and glazing of them, I dont know enough to be helpful in that so Im hoping someone here recognizes them or maybe an steer me in the right direction to keep researching, Im not really convinced they are even NZ pottery but he is usually right

Sorry Sarah, I have never seen these shells before, so I can't help with id.
The bases of these pieces are very crudely finished which points away from Crown Lynn/Ambrico ware to me.  They appear to have been made by the same pottery.
However I do know that Crown Lynn used those two numbers and 1115 was a Coffee Pot lid and 1116 was a soup bowl and they were made in 1971.

Thanks Ev for your reply, I agree the numbers do not equate to CL and early work wouldnt be numbered in the 1000s, so time to look overseas