Jim, I still have my original Edmunds kit box & build and it is dated 1967. I was not sure when Lindberg issued theirs. Know that within a year of buying the Edmunds kit, my main source for models at that time had the "White Lightning" kit. but since I had not started painting my builds, that one did not last too long, as the kit did not have "rubber" tires with everything cast in white plastic. However parts of that build ended up as part of other builds. Those builds are running around on this site....2 in the open wheel sections and IIRC the other is in the "Cars with Fenders" section. In short, the engine from the Lindberg kit ended up in '32 Ford coupe "modified" #48, the roll bar ended up in my 1st Kustom Koffin kit, built in 1971, the 2-tone blue #6 in the same section here, while the front/rear axles/tires ended up in a "wild" Hobby Stock early-mid '60's Mercury Comet body on a well cut up '57 Chevy frame (from the original AMT '57 Chevy kit)....
Update:
the modifieds mentioned are on P3 in the Open Wheel section: one titled "Couple of Oldies" and the other "Old Lindberg builds"
the "Hobby Stock"(?) is on P3 of the "Cars with Fenders" section, titled "A True Junk Yard Build?"
They were all posted at FRW waaaayyyyy back when LOL