Mintage numbers of 1935 Silver Jubilee medals

shirohniichan2

Heritage has both the 57mm (Eimer 2029a) and 32mm (2029b) versions of the silver George V silver jubilee medals.
They have the mintage of the former listed as 247. I thought that the latter struck in gold only had a mintage of 247. This is confusing.
Is there any authoritative reference that shows the respective mintages of the 57mm and 32mm versions in silver?

Exbrit

The heritage listings are somewhat misleading. They list the two silver 57mm medals citing different eimer numbers (a. and b). While I no longer have Eimer’s book, I believe both should be a, and the 32mm b. I would not rely on the mintage number without some additional documentation.

It is interesting that PCGS uses eimer numbers and NGC uses BHM numbers. I like to use both.