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Auction: 169 - The Philatelic Collector's Series Sale
Lot: 358

SBK #203z.Ab.1; 1936-38 10r Red instead violet, grilled paper, ERROR OF COLOR, an impressive block of four from the upper right corner of the sheet, exhibiting the accumulated sum of the facial value per vertical column which only appears at top, of great freshness and never hinged, showing the same centering of all stamps known; only one sheet of 50, numbered 64065, is recorded featuring this error, with this block of four being of even more significance as originating from a privileged location in the sheet, a great rarity of Swiss modern philately; 1993 Rellstab certificate (SBK CHF40,000+).

Estimate
$10,000 to $15,000