Lot 51095 – 1924 50c Olympics unissued design (depicting the Roman arena in Nemes) colour proof on vertically laid paper in light blue and dark blue

1924 50c Olympics unissued design (depicting the Roman arena in Nemes) colour proof on vertically laid paper in light blue and dark grey-blue, showing impressions of the central vignette and frame dies struck into the paper, fine and scarce.