My 55.2 blank off knobs, which I believe are original; are same style as other dash knobs, which I think are available aftermarket. Hope this helps.[b][/b]
Geoff
1955 2nd Series 3600 235 cid, 4 sp. - Current 1979 Chevy K10 350 cid 4 sp -Sold 1955 2nd Series Wide Window 283 cid 3 sp - Totaled