Envelope, 1879, 1¢ light blue on fawn, die 2. Entire, fresh and pristine, Extremely Fine, a rare unrecognized 1925 re-value surcharge "error" (tentative listed type 8 surcharge on #409 in Thorpe-Bartels) either of favor or oversight by postal employees, only a few exist. UPSS No. 285-6var. Scott No. U118var  Estimate $600 - 800. $0 (Image)