Lot 51092 – 1924 50c Olympics unissued design (depicting the Roman arena in Nemes), group of three mono-colour proofs on quadrillé paper

1924 50c Olympics unissued design (depicting the Roman arena in Nemes), group of three mono-colour proofs on quadrillé paper in light brown, violet and deep green, showing impressions of the die struck into the paper, each with various amounts of toning and peripheral faults, scarce.