The strain on the left is Recess Embossed: PP INC. Made by Porcelain Products. This one has a sort of brown sugar glaze. One of the very few brown PP products I like! This one is 3" long by 2 1/4" tall. The one on the right is unmarked. It falls in that 'boring' category. This one is 3" long, and more like 2 3/8" tall.