Rectangular Folding Butter, Soap Mold
This is a very nice mold. Have not been able to find another one like it, so it could very well be a homemade one. It measures 31" long by 5" wide at the top then it tapers down to 4" at the bottom.It opens by releasing the hooks on each end. I used it for a number of years as a knicknack shelf. It does have a crack near the top.