so it's not too surprising that you found an example that had been holed
My mother inherited
a fair pile of Canadian Silver. When she wanted it all organized, I became a numismatist and took over the collection. I don't know if my grandparents drilled the hole or not but I do have a 1940 or 50 something half dollar from that lot that has been silver harvested. Maybe I'll add a photo later.
Thanks for your reply.