Pin Tumbler Padlocks
Y

Click to Enlarge Image "YALE". 2 1/4" wide. Steel case. Steel shackle. "YALE & TOWNE MFG. CO." is stamped on the reverse of the case. Mfg by: Yale & Towne Mfg. Co.
"Courtesy Neil Pylant" 
2338
Click to Enlarge Image "YALE". Brass case. Brass shackle. Mfg by: Yale & Towne Mfg. Co.
"Courtesy Neil Pylant" 
2521
Click to Enlarge Image "YALE". 2 1/8" high x 1 1/2" wide. Steel case. Steel shackle. Mfg by: Yale & Towne Mfg. Co. US Patent #D24930. 7604
Click to Enlarge Image "YALE" - "YALE". 2 5/8" high x 2" wide x 13/16" deep. Brass case. Steel shackle. This is an early master keyed padlock. Mfg by: Yale & Towne Mfg. Co.  US Patent #912773.
"The Mike Pitman Collection"
7613
Click to Enlarge Image "YALE" - "Y&T" Trefoil. 3 3/8" high x 2" wide x 13/16" deep. Brass case. Steel shackle. Mfg by: Yale & Towne Mfg. Co.
"The Scott Family Collection"
2868
Click to Enlarge Image "YALE" - "Y&T" Trefoil. 3" high x 2" wide. Brass case. Steel shackle. Mfg by: Yale & Towne Mfg. Co.  US Patent #457753 US Patent #567305. These are the original patents for this mechanism. 7599