1918, 10 to 45 Fil mixed franking with S.H.S. overprint on cover used in Zagreb and four miniature sheet color proofs with 16 imperforated stamps on croated paper without gum (M) (Tax Method: Margin System) (Image)

1935, ROCKET-MAIL, "Jug II" rocket-mail stamp and 25 Pa black/greyblack with bilingual dater HOCE, 20.VIII.35 on cover with bright green cachet of rocket "Dospelo z raketo-Jug II System Schmiedl", addressed to Maribor. F/VF condition, min. stains, only 205 covers transported. Scarce! (Tax Method: Margin System) (Image)