St Vincent - Grenadines 1988 International Tennis Players m/sheet (Stefan Edberg & Steffi Graf) die proof in magenta & cyan only on Cromalin plastic card (ex archives) complete with issued m/sheet (SG MS590). Cromalin proofs are a……Details Below

St Vincent - Grenadines 1988 International Tennis Players m/sheet (Stefan Edberg & Steffi Graf) die proof in magenta & cyan only on Cromalin plastic card (ex archives) complete with issued m/sheet (SG MS590). Cromalin proofs are an essential part of the printing proces, produced in very limited numbers and rarely offered on the open market.