Vintage Master Lock Co. No 77 numbered 5749.

Length: 1.625 inches 
Width: 0.625 inches
Height: 2.5 inches
(all dimensions are approximate while locked and not including key)

Please refer to item photos for full visibility of item condition. Feel free to ask questions. Item may have scratches, dents, rust and oxidation, etc. Please refer to all photos for accurate details on condition.