Lot
516 
Providence, R.I., 1846, 5¢ gray black, four clear to large margins, center surface scuffing, cancelled by manuscript "V" cancel on blue folded letter with red "Providence, Sep 12" and matching "Paid" and "5" rating handstamp to East Cambridge Mass., a Very Fine use, Slater Census #7, ex-Makepeace; with 2017 P.F. certificate. Scott No. 10X1 $6,500.
This cover was part of "The Booth Find" that produced Slater covers Nos. 7 and 8. They were found among the papers of Dr. C. Booth papers in an old trunk in April 1926. Slater was shown the covers by Philip H. Ward Jr. at the New York 1926 International Stamp Exhibition. He made an offer of $300 for the two, but there were sold to another collector, Franklin Allen of Greenfield Mass.
Realized: $3,000