Canada 1099-1102a sheet of 4 blocks

$ 10.30

Click to enlarge

Canada 1099-1102a sheet of block of 4, MNH, $12.00. Michel 999-1002 bogen, Euros 18.00. Canada Day 1986. Invention blueprints: Rotary show-plow, 1869; Canadarm, 1986; Anti-gravity flight suit, 1938; Variable pitch propeller, 1923.