5 c. pale reddish brown, block of four, fresh colour and ample to large margins, with part of neighbour stamps at right, used with straight-line "FRANCA" on letter sheet, dated "Chillan, Abril 14 1857", to Valparaiso. The lower pair affected by horizontal filing crease, otherwise very fine and fresh. The only recorded block of four of this shade on entire. Certificates RPSL (1979) and BPA (1992) (Scott 3)
Provenance: Joaquin Galvez (62. Corinphila auction, 1979) Gerhard Blank ( Robson Lowe, 1991) Joseph Hackmey (228. Corinphila sale, 2018)