Rigol2000
Two images added to the gallery with photo owner's name added.
21:13
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Stpaulpiper
Added source
17:08
+19
Added another example of a Duncan Hill Aerosphere pipe
16:55
+147
Magna
no edit summary
00:13
+21
Sethile
04:23
+451
02:05
+260
Sam
Created page with "Established in Hartford Con, most likely in the late 1930 by Fred Warnke, who obtained a patent on the system pipe on January 22 1935. the company way moved to Tulsa Oklahoma at ..."
04:05
+321