RIB SERRATED (AKA) shaker
• AKA: ZZ Unidentified No. 850
• MAKER: Unknown Maker/Unknown Location (Company Operated: Unknown), Introduced: unknown date introduced
• NOTE: Named by Peterson, page 143, says "The serrated portion is sunk between the ribs". Pictured on page 37.
NOTE: Has numbers on the base:
• MOTIFS: Panels, Ladders/Zippers, None