New York N.Y., 5c Black, Se-Tenant Pair, "ACM" and "AC M" Initials (9X1-9X1a). Positions 33-34, horizontal pair with the right stamp No. 9X1a, unused (no gum), large margins, faults including both stamps with sealed tears, right stamp also with diagonal crease

VERY FINE APPEARANCE. AN EXTREMELY RARE UNUSED PAIR OF THE NEW YORK POSTMASTER'S PROVISIONAL WITH A COMBINATION OF "ACM" AND "AC M" INITIALS.

This is the only unused example of this signature combination we have encountered. Ex Frelinghuysen. With 2012 P.F. certificate. Unpriced in Scott as unused combination pair. Scott Retail as used

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