The Raleigh Criterium came in several versions... the Carlton made versions were mad in England and had Reynolds 501 frames while latter models were straight gauge frames that were fitted out with a full Shimano 600 Arabesque group.
Pedestrian frame and awesome bits here... most Straight gauge Criterium frames I see are just that as they get snapped up for their Shimano 600.
Mine was a latter model and was probably an '83... I laid down some stupid mileage on that bike as a three speed and fitted some of Raleigh's 650 B wheels that they were offering during this period to allow the bike to handle some rougher roads and trails.