ROUNDHEAD DUMBBELLS made by Hi HofmanN industries 2-65

Hofmann Industries is a foundry in Sinking Springs Pennsylvania and is no relation to Bob Hoffman from York barbell. As a foundry Hoffmann Industries made these Dumbbells I believe 1960s – 1970s in the USA until they had them made in China in the mid 1970s – 80s and are still in business today but do not produce weights. This is a USA set in pairs of 2,3,4,5,7,10,15,20,25,30,35,40,45,50,60,65.   Currently I am seeking pairs of  1, 6,8,9,55,60 & 70–100 (not sure if they made anything above 70)