Antique 1700's Iron

Antique 1700's Iron Chamber Door Skeleton Key Lock Quantity :  1 Size : Overall Size:    4 1/4" Tall      X      6 1/8" Wide Lock Plate:       4 1/4" Tall      X      4"       Wide X 5/8" Deep Mounting Holes C-C:    Side-to-Side)  3 1/4" Top-to-Bottom)  3 1/2" Metal :        Iron Other :        I do not know if this lock works (see pictures) Bin #:        186 Condition/Returns & Refunds : This was purchased from an estate sale. The items are being sold just as I purchased them. I have little knowledge of this hardware or its particular uses and can't make any guarantees that the item is complete are that the parts contained in this listing are matched correctly. So LOOK CAREFULLY at the pictures and determine on your own the items condition and the items intended use, because what is pictured is what you will receive. Returns and/or refunds are offered only when items are lost in shipping or you receive something that is different from what was pictured in the listing