Losnr. 671 - 284.-290. Auktion

1864/65: Rivadavia 15 c. blue, wmk. RA, imperforate, a used example with large even margins all round, of rich depth of colour, lightly cancelled by obliterator in black. A superb example of an extremely rare stamp. Signed G. Bolaffi. Certs. A. Diena (1961), BPA (1997) Scott = $ 6'500.