Spiegel, May, Stern, & Co., and Martha Lane Adams, Net Sales and Before Tax Net Earnings

Spiegel, May, Stern, & Co., and Martha Lane Adams, Net Sales and Before Tax Net Earnings, 1907-1921 (in thousands). Source: The Credit Merchants: A History of Spiegel, Inc., by Orange A. Smiley and Frederick D. Sturdivant.