Palm 'Filter 9' Smooth Bent Acorn (304), English Make, Era Undetermined

This reference example is an English-made estate pipe of the Palm marque, catalogued under the 'Filter 9' designation with shape number 304, a smooth-finished bent acorn. The acorn is one of the classic shape families of the era: a bowl that tapers from a broad rim downward to a narrowed heel, echoing the profile of its namesake seed. In its bent configuration, as here, the shank and stem curve downward from the bowl, shifting the pipe's balance toward the jaw and giving the smoker a lighter, more relaxed hold than a comparable straight design. The smooth finish leaves the surface of the stummel polished and uninterrupted, presenting the material's natural figure without rustication or sandblasting. The defining engineering feature of this example is its filter system. The 'Filter 9' name refers to the 9mm filter standard, a bore diameter in the shank mortise sized to accept disposable 9mm filter cartridges — most commonly activated-charcoal types — placed between the tenon and the airway. The 9mm system became particularly widespread in European pipemaking through the twentieth century, and pipes built to this standard are immediately identifiable by the enlarged mortise that receives the cartridge. Such pipes may also be smoked with an adaptor or open-draw insert in place of the filter. Dating rests on limited evidence. The pipe carries the shape number 304 and the line designation of its filter system, and it is documented as an English estate piece — that is, a pipe with prior use before entering the archive. The record therefore stands on the shape number, the line name, and the stated English origin.