Very rare story lock padlock. The bird pattern
Can be seen in the Russel and Erwin Mfg. Co. 1886 catalog. Iron with bronze/copper finish. Wonderful patina. Key is not original but operates the lock smoothly. The lock works perfect, exceptional condition. Lock is 2 5/8" tall x 2 1/4" wide. I measured 2 times as it says 2 7/8" high in the Arnal. - eBay
This lock has a 'buy it now' price of $2,000 (Plus $5 shipping) but failed to sell.
That's nice but most people are not going to be able to appreciate the value of the lock, provided that it is worth that much.