Swiss SG13var 1850 Rayon I 5r pale red and pale blue PAIR Cross no frame (37-38)

1850 Rayon I 5r. pale red and pale blue central cross without frame pair type 37-38 stone C2 (LO) used with rhombus cancel lightly in black good to very large margins including part of adjoining stamps at top and right small surface rub in the right adjoining stamp (if trimmed would leave a perfect four margin Pair) RPSL certificate Zst 17IId SG 13var. Ex Dunlop