Below are pictures taken at different angles of an oyster knife my
Father made back in the 80's. My Grandfather (Jeff) was an oyster
shucker in New Orleans when Daddy was young. I'm going to assume Paw-Paw
showed Daddy how to not only use one but make them too! Homemade kitchen utensils
were not uncommon years ago.
Notice the hand carved indentions, they are there for a specific
purpose. See Oyster Shucking here.