You didn't imagine it. The Revell Treasury-class cutter originally came out in 1957, with the name
Campbell. (My source is the bible on Revell, Thomas Graham's
Remembering Revell Model Kits. Hey! I think I've finally figured out how to use the italic font on this site!) It represented the ship in her then-current configuration, with a single enclosed 5" gun mount on the foredeck and depth charge gear on the stern. (The original armament of the Treasury class was two open 5" mounts on the foredeck and gear to carry a seaplane aft.)
According to Mr. Graham the kit was reissued twice: as the
Campbell again in 1968, and as the
Taney (original name:
Roger B. Taney) in 1972. He doesn't mention (because the book's coverage stops with 1980) that the kit was also one of the Revell/Monogram "Special Subjects" reissues in the eighties; I picked one up, in the
Taney box, then. I haven't built it - but I doubt if I could find it. I imagine you're right about the fit problems. This kit is a real classic from the "golden age" - with all that implies. I suspect one will turn up on E-bay. Mr. Graham estimates the value of the original issue at $40-$50, and the last reissue (other than the "Special Subjects" one, which he doesnt' mention) at $15-$20.
At about the same time (1957) Revell issued another Coast Guard vessel, the icebreaker
Eastwind. It also got reissued several times - including a couple of reincarnations as its Navy sister ship, the
Burton Island. If I remember correctly (as I frequently don't these days), the original issue included one of the real ship's more unusual features: a full-size propeller in the bow for breaking ice. That idea didn't work well; the broken chunks of ice repeatedly jammed it. The Coast Guard removed the bow propellers from the whole Wind class, and it disappeared from the reissues of the Revell kit. Since the kit also included a miniature helicopter (rather than the Curtiss Seagull that the original ship carried in its early years), it didn't accurately depict the
Eastwind or any of her sisterships as they actually appeared.
Apparently that was a period - the only one - when Revell had a special interest in the Coast Guard. In the following year, 1958, the company brought out its famous
Eagle kit, which we've dissected elsewhere in this forum.