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Michael, Librarian
Category: General
Satisfied Customers: 2532
Experience:  20+ years as information professional
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U.S. Mail Rotary Padlocks have five different shackle stamp

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U.S. Mail Rotary Padlocks have five different shackle stamp configurations. Blank, Star, Delta (triangle), Phi (zero with a "/" through it), and various combinations on one or both sides. What is the significance of these markings? Thank you.

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Hello, Thank you for using this service. I wish to introduce myself. I am a Research Librarian with 20+ years of experience.

Quite a interesting piece of U.S. history by researching today the collection of padlocks you listed today.

I have come across a link from collectors that offer a symbol table that may help in discovering the meaning of each on the padlocks in your collection:

Michael and 20 other General Specialists are ready to help you