#26A - 3¢ 1857-60 Issue, George Washington, produced by Toppan, Carpenter, Casilear & Co., Perforated 15.5, plated as 19L10i, in Brownish Carmine shade.
Cancelled: blue "BALTIMORE/JUN/xx" CDS.
Uncommon Variety: Recut inner frame line at Right. Described in "The 3 cent Stamp of the United States 1851-1857 Issue" Revised, by Carroll Chase, Quarterman Publications - 1975, see pages 134-135, Figure 92 & 93.
See scan(s) and good luck!