I have a collection of mid-1960's through mid-1970's Carltons purchased via Raleigh in the USA & my first 10-speed was a 1972 Raleigh Grand Prix. I also OWN that 1968 competition which appears in the catalog page you describe (by the way those are Nervex Pro lugs no Legere lugs), sir, this bicycle is no Raleigh/Carlton Competition. I have a pretty complete set of catalogs and one or two missing from
www.bulgier.net/pics/bike/Catalogs/ . My earliest carlton is 1950.
I am sorry to report that those (quite heavy) carlton wrapover seatstays were used only on low-end models, plain gauge carbon-steel (8 lbs+) frames and perhaps truwell tubing, never on a 531 main tubes bike (usa : super course ; uk: carlton catalina). The Nervex Legere lugs were not used on any models in the USA after 1965. I think the Legeres might have been used on the Carlton Catalina (which also used capella and bocama feature-cut lugs) or "Raleigh Carlton" (as they were called in the USA). Here you can just barely see the traces of the front of the Nervex Legere lugs on a 1967-68 "Raleigh Carlton" model sold in the USA :
http://www.bulgier.net/pics/bike/catalogs/Retro-Raleighs/67-Catalog.pdf
No other 1960's or 1970's Carlton Lug had this configuration (nervex pro, prugnat longpoints/p1 latin line, prugnat 62s, bocama competition, bocama feature-cut, carlton capella, haden sovereign, etc.)
If you could give us the serial number from the bottom bracket (letter(s) + numbers) or rear dropout (numbers only) that might pinpoint the year.
The Raleigh 80th Anniversary Badge was used in 1968 only. It was not used in any other year, because no other year was the 80th anniversary of Raleigh. My 1968 competition came with an anniversary badge.