111. Dublin Shapes: A Visual History by Era (1896-2018) | peterson pipe notes
Pipes and shapes
Savinelli Shape Chart - Pipes and Cigars - FAQ
146. A Guide to System Shapes, 1896 – 2019, Part 1 (The 300 Shape Group) – Peterson Pipe Notes
Silhouettes of tobacco pipes. Black silhouettes of tobacco pipes on white background. | CanStock
Happy IPSD!!! Here's a little pipe history! Dr. Grabow shape chart, advertisement, and order form, circa 1970! Full details in comments. : r/PipeTobacco