T. Alteneder & Sons Philadelphia Drafting Ruler - 1:31680 USSTD Made in USA 13"

Vintage Charles Bruning White Plastic Drafting Machine Ruler with Case

W & G Made in Australia WG/ 112 Engine Divided Ruler Drafting With sleeve

W & G Drafting Full, Half, 1/4 1/8 Size Scale 18" Ruler Model WG/S118A

Vintage Dietzgen 1656 BP Triangular Scale Ruler Architecture Drafting

W & G AUSTRALIA WG/ O1112A ENGINE DIVIDED 1/32 & 1/16 RULER-E

Alteneder Vintage Drafting Compass in Box with other items

Vintage ALTENEDER "Spacing Dividers" "Ten Point" Mechanical Drafting Tool