I recognized the gun in the first picture, from Kennedys book, but the close-up of the engraved bolt handle on the other gun didn't register. Had it been the full size picture, I'd have immediately known it was from the book. I've had my copy since the mid 60's, bought it when I was teaching myself to checker. I think I memorized every checkering pattern in it. Like gasgunner, I learned enough to become pretty good, but not great. Sadly, at 70, arthritis has pretty much put a stop to my checkering and stock making.
Another book showing some pre 1950 stocks and checkering is Dunlaps "Gunsmithing". The photos aren't as good as in Kennedys book, but while I was learning, those books were the only ones I knew of.