Watch City Cigar Flake #558 in a Altinay translucent meer.
Thank you, that’s cleared up a lot of questions I had about these two pipes, I feel lucky to have them and their system works.A most handsome pair !
Regarding the Patent: it's not visible from the outside but can be seen in this cross-section.
Even if the pipe is not stamped 'Masta Cool Chamber' or 'Masta Popular' that's the patent
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“Masta” Patent Pipe Co. (The) - 153 Fleet St. E.C.; works, 28 GloucesterSt. Clerkenwell E.C. & St. Claude, Jura, France; manufacturers & patentees of the “Masta” patent pipes, cigars & cigarette tubes, briar & meerschaum with vulcanite, amber, amberoid & ivory mouthpieces.
Masta economy model - the 'Popular' (w/ electro-plated mount):-
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More up-market Masta stamped 'Cool Chamber' (w/ silver mount):-
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