Unusual Carlton - any idea what model?

[otherself]

This frame I just bought is said to be a 531 Carlton from the 1970's but it has the earlier Capella lugs. Capella lugs were used by Carlton from 1959-1967.

Down tube transfer and brazed gear lever bosses indicate from the 70's. Dropouts look 70's. Lamp bracket on fork looks 50s-60's. Bit of a weird one . Did they just use older lugs? (I've seen some mid-late 1970's SBDU Raleigh's use Capella lugs... Even on 753 tubesets; https://raleigh-sb4059.com/2020/02/...bdu-ilkeston-reynolds-753-sb1625-new-arrival/).

 

[Nob]

One for History Man to solve..if you can get a frame number….

 

[Old Ned]

Is that an early Stronglight cotterless axle with the threads on the axle end? I had a couple MANY years ago when I were nobbutt' a lad - and I reckon they were a few years old then!

Or is it some modern 'budget' axle?

 

[mdvineng]

It wasn't unusual to have some brazed on bits added later. Lever bosses especially.

 

[grubb1937]

If it is a Carlton the frame number is usually stamped on the rear dropout and has a prefix letter.

 

[Midlife]

Certainly Capella lugs, dropouts look like they have been replaced so could have had more braze ons. I'll have a ponder....

 

[Midlife]

Sort of reminds me of a Catalina with some modernisation. They did a number of different models all under the Catalina moniker

https://1.bp.blogspot.com/--D89CUDv...1600/Fullscreen+capture+12142017+20420+PM.jpg

 

[Midlife]

Axle is probably Sugino Maxy, typical chainset when swapping from cottered to cotterless

 

[vcballbat]

The rear dropouts are by Vitus and appeared on Raleigh & Carlton models in the early 80's so maybe an indication to when the frame was updated.

 

[Midlife]

Good spot, I thought they were Gipiemme