|Note_en=from the finding of an almost identical one dated 1929-11. Advertising for some [[celluloid]] models: [[Swan SF 292]] for ladies, [[Swan SF 242]] and some mechanical pencils, showing different colors and their [[Numerazione Swan|numbers]]. Mention the correspondences: | |Note_en=from the finding of an almost identical one dated 1929-11. Advertising for some [[celluloid]] models: [[Swan SF 292]] for ladies, [[Swan SF 242]] and some mechanical pencils, showing different colors and their [[Numerazione Swan|numbers]]. Mention the correspondences: |