Vintage 70s 80s London Underground Map Scott Lester Boxy Single Stitch T Shirt

Vintage 70s 80s London Underground Map Scott Lester Boxy Single Stitch T Shirt. Not sure the decade. There are others from the same manufacturer listed as 60s but the tag and material seem more modern, so 70s or 80s is best guess. Mounted collar, single stitch hem. Cropped, boxy fit, knit fabric with some stretch. Tagged size 3 listed as medium based on measurements, see below for best fit. Approx measurements pit to pit: 18” collar seam to hem: 20” Item is pre owned. Good condition with some notable wear. Some marks and faint color variation/yellowing, small hole under each armpit.