MacQueen Churchwarden Pipes
Churchwarden pipes were reputedly named after churchwardens who used to put their pipes' long stem out of church windows so they could smoke in church.
Long ago, churchwarden pipes were made of clay and were common in taverns, and sometimes a set of pipes would have been owned by the establishment and used by different clients like other service items (plates, tankards, etc.).
In Germany the style is referred to as "Lesepfeife" or "reading pipe," presumably because the longer stem allowed an unimpeded view of one's book, and smoke doesn't form near the reader's eyes, allowing one to look down.
In-Depth Youtube Channel: Hobbiton Piper - YouTube