Another frame in my SBDU collection lacking an SB number! Yes, this frame creeps into pre SBDU territory and was built at Raleigh’s Carlton facility at Worksop. G4582 is a Raleigh Team Professional MK. IV and dates to 1972. The frame is also stamped with the initials ‘DR’ which links to TI Raleigh rider Dave Rollinson. A 1972 TI Raleigh UK Team bike!