Lot 51614 – RUSSIA 1917 1R imperf, shifted red colours in 5 double sheets

1917 1R in 5 complete horizontal double sheets of 112 (including each 12 decorated fields) with large horizontal gutter (16 gutters), showing also different colour shade of brown printing, both with progressive stronger getting colour shift of red orange print of eagle & value, never hinged, as usual folded in gutter, very fine Mi no. 77Bxb var., Standard 152 var., Liapin 148 var., Soloviev 123 var, Zverev & Gilmanov no.139 var.