Lantern slide, glass B&W slide in wood frame. Image framed in black and gold paint? Handwrtten in ink on a sticker on the glass "1771 Prebischtor cote ouest (Suisse - Saxonne)" and in print "Oelschlaeger Bros., 88, Fulton Street (New York)." Image is of a rock/natural bridge in mountains, it is called the Prebischtor or the Pravcicka Gate.