Unusual knife--a tool for what?

[Ian]

Robert, you are absolutely positively correct. This is a beekeeper's capping knife used to remove honey from the frame.

There is a nice video here that shows the process. Modern knives are heated electrically to facilitate the process of removing the caps that are made of bees wax. Older knives, like the example shown here, I am told were dipped in boiling water to heat the blades.

Ian.