Updated: May 29, 2013
▲ (Left side)
Atwood
(Right side)
Made in London, England, 6B
(Underside)
U.S. PAT. 2652062
The Atwood pipes were equipped with a permanent aluminum cup at the base of the chamber, with a bore hole. Atwood M. Tempe (Los Angeles) invented the system about 1950. The patent (U.S. PAT. 2652062) was granted in 1953 and the author partnered with Comoy's to produce the pipes. See drawings and description in document.
Augsberger
(Frank): see Natural World
▲ Auld Erin, Made in Ireland, 606
▲ Auld Erin, Made in England, 608
▲ (Underside) Auld Erin, Made in Ireland, 417
"Auld" (Scotland) = Old
"Erin" : former poetical denomination of Ireland (cf. Éirinn go Brách)
These pipes seem to have been crafted in both Dublin and London Peterson's facilities.
"Erin" : former poetical denomination of Ireland (cf. Éirinn go Brách)
These pipes seem to have been crafted in both Dublin and London Peterson's facilities.
Aux mines d'écume
Paris 
▲ Aux mines d'écume, PARIS, 35 Bould St Martin (In oval)
▲ Aux mines d'écume, PARIS, 35 Bould St Martin (In oval)
Axmacher
Frank
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▲ (Underside)
F. Axmacher, Germany (In circle)
11 A
Artisan: Frank Axmacher (born 1963)
Early stampings (until 2008): "AX" wedged between the two horizontal bars of an "F". Grade and date were stamped under the two bars.
Early grading (until 2008): Two letters. The first is for the pipe quality (ascending) from F to A. The second indicates the maker's evaluation.
Current stampings: Circular stamp
The date is stamped inside the circular signature. (i.e. 11=2011). The grade may be inside or outside the circle.
Current grading (ascending): C, B, A and AA for exceptional pipes
Early grading (until 2008): Two letters. The first is for the pipe quality (ascending) from F to A. The second indicates the maker's evaluation.
Current stampings: Circular stamp
The date is stamped inside the circular signature. (i.e. 11=2011). The grade may be inside or outside the circle.
Current grading (ascending): C, B, A and AA for exceptional pipes
Azuma
Tsuge
▲ AZUMA Hand Made in Japan 501
This Tsuge second was essentially an export brand in the 1980's
See also (same logo): Esterd