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The date code is just after the patent number (sometimes after FABRICATION ANGLAISE): '''1920 +: <span style="font-size:small"> <u>2</u>, <u>3</u>, <u>4</u>, <u>5</u>, <u>6</u>, <u>7</u>, <u>8</u>, <u>9</u> and, <u>0</u> for 1930, then <u>11</u>, <u>12</u>, <u>13</u> and, <u>14</u> for the early-30s.</span>''' (they are smaller and underscored). | The date code is just after the patent number (sometimes after FABRICATION ANGLAISE): '''1920 +: <span style="font-size:small"> <u>2</u>, <u>3</u>, <u>4</u>, <u>5</u>, <u>6</u>, <u>7</u>, <u>8</u>, <u>9</u> and, <u>0</u> for 1930, then <u>11</u>, <u>12</u>, <u>13</u> and, <u>14</u> for the early-30s.</span>''' (they are smaller and underscored). | ||
* "FABRICATION ANGLAISE" | * "FABRICATION ANGLAISE" stamped on pipes destined for France. | ||
If it doesn't have the date code, it may be from before 1921. Check it out [[#Pre-Date-System|'''here''']]. | If it doesn't have the date code, it may be from before 1921. Check it out [[#Pre-Date-System|'''here''']]. |