The daybook contains daily transactions between the Sagendorph Woolen Company of East Brookfield, Massachusetts and other businesses, local residents, and the company's labor force. These detailed entries present a dynamic picture of the company's manufacturing operations ranging from the purchase of raw materials to the sales of finished products.

Also included are many of Sagendorph's intermediate expenses including equipment purchase and repair and standard mill purchases such as stationery and boxes. There is some evidence that Sagendorph spun raw materials for other named companies and sold some goods on commission.

Although the extant records cover only a brief period of the mill's history (November 1885- October 1887), this 400 page volume provides a detailed record of how textile mills operated during the late 19th century.