Pella Double Hung Window Push Button Lock & Keeper Screws – Old Style – Copperite. Double Hung Window Lock, Old Style Vintage Color: Copperite / Roman Bronze. Discontinued – Limited to existing inventory – These Locks are used. Length: 1-3/4 Inches Width: 1-15/16 Inches Screw Center Length: 1-1/4 Inches Color: Copperite. These are vintage locks and they will show normal signs of used condition but all work as they should: the thumb handle turns with the spring and with ease. They are no longer manufactured. Normal signs of use.