375rd Heinrich Köhler auction - Day 1

Ferslew 4 rbs. brown with ample to large margins, used on entire letter with adjacent cds. "SØNDERBORG 20 5 1852", a stamp cancelled by red sealing wax with thumb print, very fine. The only recorded example of a 4 rbs. cancelled this way; a most remarkable item. Certificate Paaskesen (1998)