Which pipe is Charles Peterson depicted as smoking ? That would be the quintessential model as they used it in their own advertising to reflect the company. Most likely the 01. "The shape was apparently a favorite of both Charles and John—the O1 (“O” for Oversized)—and is found on the first first page of Patent shapes in the 1906 catalog.' Charles Peterson biography – Peterson Pipe Notes - https://petersonpipenotes.org/tag/charles-peterson-biography/