250pr (#C6) Imperforate Color Trial in the Dark Green color, Block of 4 w/large bottom & right margins also in Green on ungummed thick paper, signed on back in pencil by the designer O. Wallish; vf & Very Rare, certif Tsachor-Aloni
[TRIAL]
Start:
$700
Sale date:
Tuesday, July 7, 2020 - 20:00
