The signal system
Subtitle: how you can use it in your business
By: Hammermill Paper Co
Contributors: Tosdal, Harry R. (Harry Rudolph), 1889- former owner
Series: Portfolio -- 22
Publisher: Hammermill Paper Company
Published: 192u
Place of publication: Erie, Pa
Language: eng
Subjects: Paper; Sample books; Selling
Notes: Cover title.

Sample book showing the use of colored Hammermill bond to increase office efficiency.