original Columbus bilateral
letter scale maker Ph.J. Maul
Again, a letter scale made by Philipp Jakob Maul in Hamburg, Germany. The special part of this letter scale is the round base. The other scale parts are known already from other scales, for instance see the black original Columbus bilateral, or the also black original Columbus bilateral. Also in earlier pages brass specimen were presented, see Columbus bilateral, original Columbus bilateral and again original Columbus bilateral.
Time has left its mark: there's a lot of rust showing on the pictures of this Maul letter scale.
rear of the letter scale
