Switzerland, 1850, Rayon I, 5rp dark blue, black & red, with frame around cross, Type 23, black frame around cross is partial, large even margins all around, deep rich colors, cancelled by neat boxed "P.P." handstamp on large folded letter, matching "Belp 15 Jan. 51" cds, neat Bern receiving backstamp, fresh and Very Fine; with 1981 Rellstab and 1995 Marchand certificates. Zumstein Nos. 15 I. Scott Nos. 5  Estimate $2,000 - 3,000. A WONDERFUL USE OF THE 5RP WITH FRAME AROUND CROSS 1850 RAYON I ISSUE ON COVER. $0 (Image)