This is an original glossy colour postcard (size approx 3½" x 5½") printed by Beric Tempest and published by Dawlish Warren Railway Museum circa 1979. Numbered T1 in their Transport Series, it features Western National bus 900 (900DTT), a 1960 Roe-bodied Leyland Atlantean painted in Great Western Railway livery to celebrate the 75th anniversary of the Helston to The Lizard bus service; it's seen here in Penzance in 1979. 

The card is in very good condition with minor signs of handling and very slight age-related foxing on the reverse (please check both scans); it's unmarked and postally unused and will be sent in a card-backed envelope for added protection.