I'm thinking there should be a type study of Bonney sockets, since they don't have date codes. Maybe there is, on Todd's site or elsewhere. I don't think I have the complete range yet, but here's a start:
1. CV script with "Forged", "B/Y" larger than “ONNE” all slab serif, overall frosted, no knurl, “MADE IN U.S.A.” after fractional size.
2. CV script without "forged", "B/Y" larger than “ONNE” all slab serif, overall frosted, no knurl, “MADE IN U.S.A.” after fractional size.
There is at least one type (looks like two) I am missing between 2 and 3. This would have a logo similar to 1 and 2, but instead of “Chromium (CV) Vanadium” under “BONNEY”, would be “Made (CV) U.S.A.” It would bear a diamond knurl band (but not in a trough), and a frosted base, polished walls.
3. CV after "BONNEY" uniform height slab serif, frosted base, gross raised-diamond knurl fills band, “MADE IN U.S.A.” after fractional size.
4. noCV after "BONNEY" uniform height slab serif, frosted base, fine raised-diamond knurl fills band, “MADE IN U.S.A.” after fractional size.
5. noCV, "B/Y" slab serif larger than “ONNE” sans serif, frosted base, gross raised-diamond knurl does not fill band, “U.S.A.” after fractional size.
6. noCV, "B/Y" slab serif larger than “ONNE” sans serif, "U.S.A." centered under "BONNEY", frosted base, depressed-diamond knurl fills band.
7. noCV, "B/Y" slab serif larger than “ONNE” sans serif, "USA" centered under "BONNEY", overall polish, markings inverted, depressed-diamond knurl fills band.
Next style change is loss of knurl in band, then loss of band. I have not included them here because while I have those styles in smaller drive sizes, I do not have them in 1/2dr, which is what is shown here. Ideally, all representative sockets would be the same part number or at least fractional size, but I do not have them. Additionally, the first two are tapered-wall (D-##), whiles the rest are parallel-wall (A-##) syles. In time, in time.
Edit - suggestion of Lugz led to more explicit descriptions. The square closeup image is of #4 & #5 to show the “MADE IN U.S.A.” versus “U.S.A.” markings and fine band-filling versus gross nonfilling raised-diamond knurls.