Great Britain George VI 1937 Silver 32mm Queen's House National Maritime Museum Medal

I was an underbidder on this medal that was recently sold on Great Collections. I am primarily a US type collector but though this was an exception medal despite not having much information about it. Is the high bidder a member of the forums? Does anyone have more info on this one as to scarcity and value? PCGS shows the mintage is 260.
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Comments
Looks like a very reasonable price sold
I give away money. I collect money.
I don’t love money . I do love the Lord God.
Another medal I have never seen before. Nice!
Queen's House and the National Maritime Museum in Greenwich are well worth the visit, once Covid wanes.
http://www.victoriancent.com
Very cool medal THX for the pics