16-028. American, 1st quarter 20th century, unsigned. Made of hand-painted Italian alabaster and standing 4 5/8" tall x 2 3/8" diameter. The bottom holds a rotating segment with 2 photos and 1 arrangement of minerals; the top piece has a magnifying glass to view the 3 scenes. This attractive Souvenir of Niagara Falls is in very good overall condition.