Pin Tumbler Padlocks
Y

Click to Enlarge Image "YALE". Brass body. Brass shackle. Mfg by: Yale & Towne Mfg. Co., Germany.
"The Edward Wright Collection"
9926
Click to Enlarge Image "YALE 726". 3 1/4" high x 2 1/4" wide x 1 1/8" deep. Steel body. Steel shackle. Mfg by: Yale & Towne Mfg. Co.
"Courtesy Neil Pylant" 
2338
Click to Enlarge Image "YALE 726B". 3 1/4" high x 2 1/4" x 1 1/8" deep. Brass body. Steel shackle. Mfg by: Yale & Towne Mfg. Co.
"The Tom Rust Collection"
10165
Click to Enlarge Image "YALE" - "Y&T" Trefoil. Brass body. Brass shackle. Model 733. Mfg by: Yale & Towne Mfg. Co.
"Courtesy Neil Pylant" 
2521
Click to Enlarge Image "YALE" - "YALE". 2 1/16" high x 1 1/2" wide. Brass body. Brass shackle. Model 733. Mfg by: Yale & Towne Mfg. Co.
"The Jim Casey Collection"
9383
Click to Enlarge Image "YALE". 2 3/4" high x 2" wide. Steel body. Steel shackle. Mfg by: Yale & Towne Mfg. Co. US Patent #D24930. 7604
Click to Enlarge Image "YALE". Brass body. Steel shackle. Mfg by: Eaton Yale & Towne Inc. US Patent #D240590. 7774
Click to Enlarge Image "YALE" - "YALE". 2 5/8" high x 2" wide x 13/16" deep. Brass body. 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 body. Steel shackle. Mfg by: Yale & Towne Mfg. Co.
"The Scott Family Collection"
2868
Click to Enlarge Image "YALE" - "Y&T" Trefoil. 2 7/8" high. Brass body. Steel shackle. Dust guard. Mfg by: Yale & Towne Mfg. Co.
"The Michael Newman Collection"
8268
Click to Enlarge Image "YALE" - "Y&T" Trefoil. 3" high x 2" wide. Brass body. Steel shackle. Mfg by: Yale & Towne Mfg. Co.  US Patent #457753 US Patent #567305. These are the original patents for this mechanism. 7599