Czechoslovakia: 1967 Aero Bratislava Aerogramm

This is Czechoslovakia #7b. The early aerogrammes of Czechoslovakia show some variants according to the width of the first line of the admonition "Vložite-li  do aerogramu ..." on the back panel.

This is type III with a width of 100.5 mm, with the "AERO_BRATISLAVA 67" imprint in brownish red.