The "Norton system" of operating doors
By: Norton Door Check Co
Publisher: Norton Door Check Co.
Published: 1921
Place of publication: Chicago
Language: eng
Number of pages: 24
Subjects: Catalogs; Hardware industry; Door fittings; Norton Door Check Co
Notes: Cover title.

"April 1921."

With partial list of buildings equipped with door closers of the "Norton Make" - pages 24-[26].

Avery Classics copy: With stamp "I.M. Morrell, Representative, 237 Minna St., phone Kearny 740" --page 1 of cover.