Letec XIII/Mag/CZ/1

Letec XIII 1937, individual numbers
no. 1 leden 1937,
no. 2 unor 1937,
no. 3 brezen 1937,
no. 4 duben 1937,
no. 5 kveten 1937,
no. 6 cerven 1937,
no. 7 cervenec 1937,
no. 8 srpen 1937,
no. 10 rijen 1937,
no. 11 listopad 1937