The IBM rebus, designed by Paul Rand in 1981, has become an iconic part of visual history and is displayed in the Museum of Modern Art. The rebus has been adjusted over the years to suit different mediums and scales. It can be used for special applications, but not as an official brand communication sign off. The totem rebus adds more meaning to the original design, emphasizing the relationship between humans and machines. The classic rebus, with its original color scheme, is still used for heritage merchandise, but approval is required for its use. The rebus should be kept separate from other visual elements and should not be altered or colored inappropriately. Approved patterns based on the rebus are available for use.
https://www.ibm.com/design/language/ibm-logos/rebus/