Canada 1099-1102a block

$ 2.55

Click to enlarge

Canada 1099-1102a block of 4, MNH, $3.00. Michel 999-1002 vb, Euros 4.50. Canada Day 1986. Invention blueprints: Rotary show-plow, 1869; Canadarm, 1986; Anti-gravity flight suit, 1938; Variable pitch propeller, 1923.