Antique Vintage PADLOCK 10 Rivet Back No Key Unbranded.  It has a 6 rivet front with a brass cover over the keyhole.  

Measures 3" high x 1-1/2" x 1-5/8" x weighs 8 ounces unpackaged.

No markings are seen on the padlock.  There are some scuffs/scratch marks.  Does not come with a key.  Being sold "AS IS."