Victoria medals information needed.

These are three of the medals available in this set. There is also a gold one, but that is not the question. Does the LARGE silver version come in Sterling and as a Plated medal?
.Auldfartte Has the Silver one in question and will post his on this thread, I hope. His is 84.gms , and appears to be sterling while mine is obviously different in weight and plated copper.
Copper version 56mm 75 gms


Large Silver, this one is plated 56mm 75.5 gms.


Small silver 26mm 9.6gms

.Auldfartte Has the Silver one in question and will post his on this thread, I hope. His is 84.gms , and appears to be sterling while mine is obviously different in weight and plated copper.
Copper version 56mm 75 gms


Large Silver, this one is plated 56mm 75.5 gms.


Small silver 26mm 9.6gms


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Comments
We've been having quite a time trying to figure this out
My OmniCoin Collection
My BankNoteBank Collection
Tom, formerly in Albuquerque, NM.
<< <i>1897 Diamond Jubilee of Queen Victoria official gold medallion minted by the Royal Mint. Crowned, veiled & draped bust left. Rev Young head of the Queen left. BHM-3506, Eimer - 1817. The official Royal Mint issue. 90g pure gold (2.8902 AGW). Couple of tiny rim nicks, practically as struck. Rare. >>
I looked in the Medals references I have and could not find anything on them so decided to let it go, they do look amazing.
Buried in the Dial-up hell that is the archives there is this