TERROR Padlock with Original Key c.1920's - Vintage Yale - 44.5mm Tall - P660

Yale & Town Terror Padlock with original no.9 key
c.1920's

Automatic function - Shackle springs open 90º when key is turned

Marked ' Terror Yale & Towne Mfg. Co. Stamford Conn. USA. '

Approximately:
44.5mm tall x 32.3mm wide
10.2mm thick case (11.8mm including the height of the brass rivets)
4mm shackle diameter
​13mm shackle clearance 
39.7g in weight

General usage wear, knocks and marks
A clean example - no rust

Several hundred more keys and padlocks are available in my eBay shop