I collect old Bibles, hymnaries, breviaries, psalters, etc. Recently I had some time to kill in London, Ontario, and blitzed as many used book stores, etc., as I could in a couple of hours. I found a 1918 Book of Common Prayer (Anglican Church), a 1963 Missal, and a 1908 Presbyterian Book of Praise. I find good places to look are the Amity Goodwill type store. Often the value is not known and you can get a good deal.