Germany: Mecklenburg-Vorpommern, Brunn / 1987
Intertech Bow Compass Sold by Hearlihy & Co.
Intertech Bow Compass Sold by Hearlihy & Co.
The Smithsonian catalogs Intertech Bow Compass Sold by Hearlihy & Co. as bow compass in its Mathematics records.
WHY IT’S INTERESTING
This green zinc alloy instrument has a black plastic handle. Silver metal adjusting bolts set the width of the instrument and the length of the needle and pencil points. The front of the handle is marked with the letter H. The back of the handle is marked: GERMANY. A gray and clear plastic envelope has a black and white plastic tube with two replacement pencil leads. The front of the case is marke