I believe this is a heavy duty wheel chock, it looks in great condition with a naturally aged patina, It looks mostly unused.  The iron clad wood block without the handle measures about 9 1/2" across x 10 1/2" tall x 5 1/2"  deep, the handle adds another 5" when added to the height.  This is a unique find if your into this sort of thing, it took me a little while to figure out what it was.  It looks great and all the metalwork is solid, please see the pictures closely and if you have any questions please ask.