This mark on the celluloid doll's upper back shows a winged mermaid inside a shield, which is the trademark for the German manufacturer Cellba (Celluloidwarenfabrik Arthur Schöbel / Schöberl & Becker), active in the mid-20th century. The number "25" below the mark indicates the doll's size in centimeters (approximately 9.5 inches).Maker: Cellba (Germany)Era: Mid-20th century (circa 1930s–1950s)Material: Celluloid plastic. She is in really good condition for her age. She has a little rough patch at the top of her forehead (possible hat was glued on at one time. and her pinkie toe on one foot is damaged. She will need a cleaning as I don't want to damage her. please email me with any questions you may have. She is from a smoke free home.