The folks at Peterson Pipe Notes have put together a great hallmarking chart. While there have been periods in the company’s history where they used hallmarking on various metal bands, in recent history, hallmarking has been saved for their Silver Mounted pipes only.

This chart covers pipes to be made through 2026. (While assumptions are an iffy proposition, there’s a good chance that the use of the alphabet will continue through the letter Z, which should be used in 2036.)
Read Peterson Pipe Notes complete post on hallmarking HERE.
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