1864, 3 k. black/green, two singles, in combination with 1866 10k. brown/blue, fresh colors and good perforation, tied by cds. “ST. PETERBURG 28 JULY 1873” to folded lettersheet with adjacent straighline “AFF. INSUFF.” and Russian framed two-line “FRANKING UNDERPAID”, via “WIEN” and “TRIEST” to Athens, Greece, with arrival mark, fine and unusual underpaid mail via Triest