My father and his father used the same 12 ga. Rem. M-10. It came to me, and I gave it to my brother a few years ago. But I kept a prize that came with it ... also posted this a while back in a thread about items members have found under buttplates.

While my father was still living I found a Minnesota small game license under the buttplate, rolled up in the throughbolt hole. It's written in my grandfather's hand, dated October 3rd, 1918 -- 4 days before my father's birth. It's now in my hunting photo journal, next to my father's last hunting license of November 5, 1985 -- 2 weeks before he died.