November 29, 2023
Description
dial on the protractor has windows to line up the correct angle and slots for marking (see photo). dial has a pointed end and a open end to line up a large pencils.
version 2 only changed the size of the numbers and spacing there are now only numbers every 10 degrees staring from 5 degrees.
License:
Creative Commons — Attribution — Noncommercial — Share Alike
9
The Alchemist
