5,741
edits
Pipedia Dunhill Dating Guide: Difference between revisions
→PAT. Nos. 209845/21&197365/20
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====PAT. Nos. 209845/21&197365/20==== | ====PAT. Nos. 209845/21&197365/20==== | ||
<span style="color:#800000">['''1927''']</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 '''Canada'''.<br> | <span style="color:#800000">['''1927 / 1928 up to 1934''']</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 '''Canada'''.<br> | ||
The date code is just after the patent number (sometimes after ENGLAND): '''1920 +: <u>7</u>''' (they are smaller and underscored). | The date code is just after the patent number (sometimes after ENGLAND): '''1920 +: <u>7</u>''' (they are smaller and underscored). | ||
* From '28 up to '34 the patent numbers stamp was preceded by "CANADIAN PATENTS". Only in 1927 were stamped the numbers alone. | |||
* "MADE IN ENGLAND" stamped on pipes intended for export, in these cases, stamped DUNHILL'S "SHELL" (without "Briar"). | * "MADE IN ENGLAND" stamped on pipes intended for export, in these cases, stamped DUNHILL'S "SHELL" (without "Briar"). | ||