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Pipedia Dunhill Dating Guide: Difference between revisions
→CANADIAN PATENTS 209845/21&PAT.PENDING
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====U.S.PATENTS 1341418/20&PAT.PENDING==== | |||
<span style="color:#800000">['''1932''']</span> Patents for Dunhill's [https://pipedia.org/images/2/2d/Screen_Shot_2563-06-24_at_11.24.38.png Oil Treatment/Sandblasting] and [https://pipedia.org/images/3/32/Innerwflange.jpeg Inner Tubes with flange], registered in '''United States'''.<br> | |||
The date code is just after the patent number (sometimes after ENGLAND): '''1930 +: <span style="font-size:small"> <u>12</u></span>''' (it is smaller and underscored). | |||
* "MADE IN ENGLAND" stamped on pipes intended for export, in these cases, stamped DUNHILL'S "SHELL" (without "Briar"). | |||
Sometimes the patent was stamped without any date code. See if there are any additional details that can help you figure out an approximate date [[#Triggers|'''here''']]. | |||
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