A 1935 Karlsruhe Regional Expedition of Technology Event Badge by B.H Mayer
Item #G29453
$36
A 1935 Gautagung der Technik Karlsruhe badge (1-4.11.1935); in aluminum; horizontal pinback; maker marked “B.H Mayer, Pforzheim” on the reverse; measuring 42 mm x 28 mm; better than very fine condition.