The History of Cash Registers
- An exhibit companion from the Museum of American Heritage provides a historical overview of the cash register, its predecessor, the cash drawer and a brief history of the National Cash Register Company.
- http://www.moah.org/exhibits/archives/kaching.html

Cash Register Sales,Service & Supply Inc
- Supplier of new, used and antique cash registers, parts and supplies including paper rolls and ink products.
- http://www.cashregisterman.com/index.htm#topofpage

The Brass Cash Register Shoppe
- Specializes in parts, repair & Restoration of antique fancy brass cash registers, or woodcase cash registers. Free appraisal. Buy or sell your cash register.
- http://brasscashregisters.com/

Brass National Cash Registers
- Images and information on Antique Brass Cash Registers. Also has a for sale page.
- http://members.aol.com/ErgoFred/NCRPage.html

Cash Register Memorabilia
- Collector of Antique National Cash Registers.
- http://ourworld.compuserve.com/homepages/dtriska/