VtG Alvin Speed-Bow 802/N w/Case Precision Drafting Tool W. Germany Makes circle

Vintage Alvin Speed Bow Drafting Compass Tools Lot of 3

Vintage Alvin Precision Drawing Set Drafting Tools Compass German Wood Case

Vintage ALVIN Speed-Bow Precision Bow Instruments Set 802/V Made In Germany

Vintage ALVIN Precision Drafting Bow Compass Made in West Germany, Engineering

Vintage Alvin Precision Drawing Set 795B Instruments/Germany-complete-Hard Case

Vintage NOS Alvin Art Drawing Set 802V Compass Speed Bow Beam Made in Germany

Vintage Alvin 515 precision drawing tool set, made in Germany