This Bent Dublin Churchwarden is my favorite 'read a book' go-to pipe shape. It has a traditional carnauba wax finish. Here are the specs:
Bent Dublin Churchwarden
Length: 10.5"
Height: 2.25"
Chamber depth: 1.7"
Chamber diameter: 0.75"
O.D. 1.5"
1.7oz 48.2gr
Stem material: Vulcanite
Delrin tenon
Pass a pipe cleaner: Yes
Sock/glove: yes