Description: Red Cross, prepared but not issued because of entry of partisans in Zagreb. Trial sheet printed in brown color on yellow not-gumed paper. At the bottom of sheet „Pokusni bakrotisni valjak. Marke prof. I. Režeka / Tipografija d.d. Zagreb“ Described in Ercegović page 400 and in Wieneke-Kruse handbook page 236.