Click images to enlarge

Description

Yale padlock with original key
Model 115
1920's
One original key stamped '2' (There were only six key changes for this model)

Steel case - originally brass plated however most of the plating has rubbed away

To open: Turn key 90 clockwise and the shackle will spring open
To close: Remove key and press down shackle

Approximately (+/- 0.3mm):
69.7mm (2⅝") tall x 50.7mm wide x 16.7mm thickness
7.6mm shackle width
22.8mm shackle clearance
115g in weight including the key

General usage wear, knocks and marks
Worn brass plating

Several hundred more keys and padlocks are available in my eBay shop, 
where you'll find a good range of curated antique keys and curated vintage keys