This is a old Redding scale from years ago. It has a cast iron base with a "well" which can have motor oil added to help dampen the swing or leave it empty and use the "free" swing. This scale has been lost in the storage for the last 20+ years. I did set it up and level adjust it and checked it with test weights and it did check out. It does have the original box and instructions. 

Check the pictures and ask any questions.