- Antique Brass National Cash Registers - Excellent Information and Links about Brass National Cash Registers
- Brass National Cash Registers - Images and information on Antique Brass Cash Registers. Also has a for sale page.
- Cash Register Memorabilia - Collector of Antique National Cash Registers.
- Cash Register Sales,Service & Supply Inc - Supplier of new, used and antique cash registers, parts and supplies including paper rolls and ink products.
- The Brass Cash Register Shoppe - Specializes in parts, repair and restoration of antique fancy brass cash registers, or woodcase cash registers. Free appraisal. Buy or sell cash registers.
- 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.
