Automatic Portable Ladder No.105
This ladder has been especially designed and used extensively in terminal rooms of Telephone Exchanges. The outstanding features of this ladder are the automatic brake and wide face rubber wheels. The ladder rolls easily in either the open or closed position. When stepped on, the ladder becomes automatically locked and will not move. Uses #235 brakes. Stock size - six foot. Any size made to specification. Made of oak.
Putnam Rolling Ladder Co., Inc.
32 Howard Street
New York, NY 10013
Tel: (212) 226-5147
Fax: (212) 941-1836
Web site: http://www.putnamrollingladder.com