1x

1963 – New London – Waterford. This actually looks like the 21x, with the “2” temporarily blanked out. Photo by Howie Hodge, from Thechromehorn.com.

21x

Norwood – That’s Ed in the 21x “Grey Ghost”, Hop Harrington in the 23, Johnny Thompson in the 122, and Bill Slater in the V8. Photo by Paul Conley, from the R.A. Silvia collection.