I got this one quite awhile ago, not sure how I missed posting it. It's a Spanish-army issued Astra 1921 (aka Astra 400 commercially) in 9 x 23mm Largo, one of the only straight blowback pistols ever made chambered in a large, high-pressure cartridge. It accomplishes this with a very heavy slide, and very strong main and hammer springs. Takes a solid grip to cock it! Very big, heavy and well-made pistol, and very unusual construction. I've taken apart alot of different pistols in my life and this is one of few where I had to consult the manual!
These two Mausers came out of the same estate sale.
The top is a Romanian-issued VZ-24 in 8mm Mauser made by CZ in Czechoslovakia. This one is very, very rare in that it was the royal crest of King Carol II, who ruled Romania from 1930-1940. He was deposed by pro-Axis forces who brough Romania into WW2, where they were actually the second-largest Axis army on the Eastern Front. Almost all had the royal crest ground off after WW2 once the Communists took over.
The botton is a Polish WZ-29, also in 8mm Mauser, made by Radom in the 30s. This one had all the markings except the serial number ground off so they could covertly be sold to the Spanish Republicans in 1936 without upsetting Germany, who were supporting the Nationalists.
This was, oddly enough, one of the hardest guns in my collection to find - first one I've found in 10 years of looking! It's a plain-jane Russian Mosin-Nagant M1891, made by Tula in 1896, which was never modified by the Finns, never converted to a 91/30 by the Russians, or simply destroyed in any of the dozen wars Russia was involved in between 1896 and 1945. It received the 1910 upgrades (handguard, curved rear sight) just before WW2, but is otherwise unmessed with, if in somewhat rough shape. It was likely another gun sold to the Spanish Nationalists, which accounts for it making it to Canada in it's original Russian configuration.