I absolutely love the City de Luxe pipes!
You did an absolute stunning job on the resto, it looks so good that I wouldn't be surprised to see it on eBay listed as an unsmoked new-old-stock example --- and the grain patterns are interesting too.
I got a couple of them and both a damn fine smokers.
I even bought an empty CdL box once because i thought it looked cool!
The Tuskan Lip was in production for a long time,
from 1933 to at least the mid/late 70's.
Some of the Tuskan Lip pipes have Pat. No. 414197 stamped onto the stem and that number can clue us in and help us find the original patent application papers which were writ in 1933.
It's neat how they say the center part can be made of ivory, bone, or similar material.
A brief passage:
"The present invention has for its object to remove or minimise the abovementioned objection and inconvenience by preventing or arresting such puncturing of the mouthpiece and, to this end, consists in providing the mouthpiece with an insertion composed of a material of comparative or sufficient hardness to resist the boring action of the teeth while not being subject to any deleterious action by the saliva; a material such as ivory, bone or the like has been found suitable but other materials having similar characteristics may be employed. "
It's an interesting document to read in full, and the fourth page has illustrations too.
See it here:
http://worldwide.espacenet.com/publicationDetails/biblio?DB=worldwide.espacenet.com&II=7&ND=3&adjacent=true&locale=en_EP&FT=D&date=19340802&CC=GB&NR=414197A&KC=A
Click the -
original document- link in the blue box on the left and it'll show you a pdf copy.
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