We found these instructions among my late father-in-law's papers. Lucky for us, he never threw anything out.
I've scanned and uploaded the entire manual here: Sunbeam Clipmaster Hair Clipper.
According to Wikipedia:
In 1897 John K. Stewart and Thomas Clark incorporated their Chicago Flexible Shaft Company, which made horse trimming and sheep shearing machinery. In 1921 the company produced its first Sunbeam branded household appliance, the Princess Electric Iron (with an option to buy a fireproof metal storage box). The name "Sunbeam" came from a company wide contest to rebrand its growing home appliance business. Edwin J Gallagher (1897–1983) a buyer and traffic manager for the company won the contest and received a check for $1,000. The company did not officially incorporate its name to Sunbeam until 1946.
The company's fortunes began to decline in the 1980's, and it was forced into bankruptcy by a financial scandal perpetrated by its CEO, "Chainsaw Al," in the 1990's. Since 2004, it has been a subsidiary of the Jarden Corporation.