1923, black surcharge 1k on Insurance stamp of 1r brown on yellow network, perforation 11½, vertical pair of types I and III, full OG, NH, VF and scarce in pair (Image)

1923, black surcharge 3k on 3r, perforation 12½, vertical strip of four, bronze surcharge 5k on 5r, vertical strip of four and pair, perforation 12½ or 13½ respectively, all different types, top stamp of the pair without a dot after ''bonam'', No.3A with minor perf irregularities, fresh, full OG, NH, VF (Image)

1931, 5th (Auxiliary) issue, black handstamp 10k over black surcharge 25k on 300r green, top left corner margin horizontal pair, imperforated at left and at top, official violet cancellation, minor paper wrinkle on left stamp, VF and scarce in pair (guaranteed genuine) (Image)