5,741
edits
Pipedia Dunhill Dating Guide: Difference between revisions
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→PAT No. 158709/14
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====PAT No. 158709/14==== | ====PAT No. 158709/14==== | ||
<span style="color:#800000">['''1924 up to 1926''']</span> The patent for Dunhill's aluminum Inner Tubes registered in Canada.<br> | <span style="color:#800000">['''1924 up to 1926''']</span> The patent for Dunhill's aluminum [https://pipedia.org/images/d/d1/PA3104-900x900.jpg Inner Tubes] registered in Canada.<br> | ||
The date code is just after the patent number (sometimes after ENGLAND): '''1920 +: <span style="font-size:small"><u>4</u>, <u>5</u> and <u>6</u></span>''' (they are smaller and underscored). | The date code is just after the patent number (sometimes after ENGLAND): '''1920 +: <span style="font-size:small"><u>4</u>, <u>5</u> and <u>6</u></span>''' (they are smaller and underscored). | ||