No Serial Number
Clark McCoy’s K&E Catalogs – 4058 Information page
Catalog Number: MHF-273, Location: MHF-D1
Keuffel & Esser 4059 8″ Mannheim Beginner’s Slide Rule
Slide Rules and Other Things
Slide Rules and Other Things
No Serial Number
Clark McCoy’s K&E Catalogs – 4058 Information page
Catalog Number: MHF-273, Location: MHF-D1