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Convert ligne (Paris line) to line (button makers)
Selected category: length.
Definition and details for ligne (Paris line):
Paris line is a traditional unit of length equal to 1/12 of a Paris inch (pouce du Roi) or about 2.256 mm. Ligne is still used by French and Swiss wristwatch makers to measure the size of a watch movement.
Definition and details for line (button makers):
U.S. button maker use the "line" unit of length to measure buttons. This unit is equal to 1/40 inch or 0.635 mm. It was probably introduced by German immigrants, who used since ninth century a different version of "ligne" equal to 1/40 inch to measure buttons.
Swap, do a line (button makers) to ligne (Paris line) conversion.
