the script-logo replaced the older record brakes. they have several differences...they only come in allen nut versions, the adjusting nuts are different, and most important, they have triangular cross section, instead of the roughly half-round cross section of the older calipers. I bought a whole group in 1984, and I think that this was the first year for general release of the new-style calipers...but the 50th group released in 1983 previewed this new style.

For what it is worth, I think that the new style works marginally better, but only marginally. Both styles are excellent stoppers...