Yugoslavia, Kingdom. A Rare 1931 Serbian Kosovo Cultural-National Calendar visually-hidden It is more than likely

It is more than likely that all the other photos that remain pasted in place have notes on their reverses as well

2) A 1992 Willingen 30th International Meeting of U-Boot Commanders badge

(Mitarbeiterausweis)

while the other three are unmarked on the reverse

plus a hook and eye closure to secure the two ends of the sash together at the bottom end

Yugoslavia, Kingdom. A Rare 1931 Serbian Kosovo Cultural-National Calendar visually-hidden It is more than likelyConstructed of off white paper with multi coloured ink, the obverse bearing a central flag of the Kingdom of Yugoslavia, topped by a date of 1931 flanked by a Serbian Cyrillic inscription of (SERBIAN KOSOVO), and situated beneath a banner headline of (CULTURAL NATIONAL CALENDAR), surrounded by black and white portraits of key figures, including King Alexander I, Patriarch Varnava of the Serbian Orthodox Church, and ministers of the elected government,