Andersok
Posted April 11, 2015 - 7:15am
There is a 1965 ad showing this version as the Beau Brummell:
This 1966 black and white ad below states "I", but does not specify yellow or white as this variant:
I think at this time our ads show BB was this model pre-1967, and that in 1967 these became the Diamond Excellency models, based on the 1967 ad that was used to identify these previously. I could not find any DE ads pre-1967, at this time. Other DE ads: 1967 1967 1968 . Beau Brummell was still an advertised model after 1966, but our current selection of ads does not show any of this square case variety as such.
Beau Brummell, no variant (or Tentative "I", as we don't know the color of "I", only that it is either yellow or white).