Slovakia WWII

1944 CHILD WELFARE 2k+4K (SG 138, Mi 155) gutter pair with shield between, from "heart" of the sheet, unmounted mint

1945 SLOVAKIA OVERPRINTED (024866)
1k20 Hlinka pictorial postal stationery card (view of Trencianske Teplice swimming pool), machine overprint CESKOSLOVENSKO, for use in the new postwar Czechoslovakia, mint