Gleaned from an unsalvageable copy of the 1937 Book of Knowledge, this double-sided color lithograph is in pristine condition with bright colors and nary a dent, tear or mark. The page measures 6 1/4 x 9 inches and illustrates 45 different fish including the paganellus, conger, bubalis and shagreen ray (fish I have never heard of, but you may have some knowledge of). I prefer fish pictures rather than arduous task of maintaining a fish tank. You might too. See the original listing for these brilliant fish pictures here.