Pin Tumbler Padlocks
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Click to Enlarge Image "RALSTON PURINA". Brass case. Made for: Ralston Purina, St. Louis, Missouri. Mfg by: Best.
"Courtesy Neil Pylant" 
4612
Click to Enlarge Image "RUSSWIN". 1 15/16" wide. Brass case. Mfg by:  Russell & Erwin Mfg. Co.
"Courtesy Neil Pylant" 
2362