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Up for sale is a rare, premium antique C. Riefler (Nesselwang & München) No. 905 drop bow compass precision technical drafting instrument. Made in Germany, Riefler tools are highly prized by collectors as the historic gold standard of architectural and mechanical drawing instruments.
This precision tool operates on a free-spinning central axis needle rod with an adjustable sliding arm holding an integrated ink ruling pen attachment. It was specifically engineered to draw highly precise, minuscule, and uniform circles or rivet points without slipping.
Condition:
Beautiful vintage working condition with a genuine, rich aged brass/nickel patina. The dropping mechanisms slide smoothly along the shaft, and the fine-threaded thumb screws turn fluidly and lock tightly. The needle point and ink pen tip remain structurally sound. No case included.
