Peterson KAPRUF X220 P-Lip, 9mm Filter

This archive record documents an Irish estate Peterson pipe of the KAPRUF line, carrying the shape number X220, fitted with the house P-Lip mouthpiece and bored for the 9mm filter system. The P-Lip is the defining Peterson feature: patented by Charles Peterson in the late nineteenth century, it directs the smoke stream upward through a graduated bore toward the roof of the mouth rather than straight onto the tongue, and its presence on a stem is one of the quickest visual confirmations of a genuine Peterson mouthpiece. The 9mm channel places this example within Peterson's filter-compatible output, a configuration long associated with the firm's continental European markets, where 9mm filtration is the prevailing standard. The X-prefixed shape numbering identifies the specific bowl and stem geometry within the Peterson catalogue, with X220 serving as the factory's designation for this form. Dating a Peterson of this kind is a matter of stamp analysis rather than any single factory date code. Petersons without silver hallmarks are typically bracketed by their country-of-manufacture stamps, the wording of which shifted across the twentieth century as Ireland's political designation changed, together with the styling of the line name and shape number. On the evidence recorded here — the KAPRUF line stamp and the X220 shape number as stated by the owner — the pipe can be placed only within the broad span of Peterson's KAPRUF production, and the record accordingly assigns an honest, undetermined bracket within the twentieth to twenty-first centuries.