Vintage Pearwood Alvin No 210 USST'D Triangle Ruler Made in West Germany

Vintage Alvin 515 precision drawing tool set, made in Germany

VINTAGE ALVIN 8" PROPORTIONAL DIVIDER TOOL 950 ORIGINAL BOX MADE IN GERMANY

Vintage Alvin No. 213 Genuine Boxwood U.S. ST'D Engineer Drafting Rule W Germany

Vintage ALVIN Precision Drawing Set 795B with Case :: Made in Germany

Vintage ALVIN 525B Precision Drawing Instruments Set with CASE / Made in Germany

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

VINTAGE! Alvin compass precision drawing drafting tools set (Made in Germany)