10c Apollo Soyuz, Perforation and Color-Omitted Errors (1570c, 1570d). Both of the Scott listed errors for this popular space issue, Vertical Pair, Imperforate Horizontally (1570c) and Pair with Yellow omitted (1570d), Mint N.H., well-centered, Very Fine, both are scare to rare with 24-36 pairs and 12 pairs recorded by Datz respectively, we have not offered either error at auction since keeping computerized records, latter with copy of 2001 A.P.S. certificate for the unique discovery pane from which this pair originates, accompanied by normal pair

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