A number of years ago I got my hands on a Comstar Programmer, it programmed roms for a computer called the Comstar System 4. I was told both the programmer and the System 4 were intel 4004 based. I asked around and kept getting told no computer was 4004 based. I really didn't do much due diligence just some searching here and there but I found enough to show that the computer did exist and was 4004 based. The website "Internet Scripophily Museum of Computing" has a page on the history of The Warner & Swasey Company. It's a decent timeline of the company http://ismoc.blogspot.com/2017/06/the-warner-swasey-company.html In "Auerbach Guide to Minicomputers" April 1976, the computer is mentioned on page 54 and page 70. On page 70 are the specifications and they show it being 4004 based. http://www.bitsavers.org/pdf/auerbach/Auerbach_Guide_to_Minicomputers_Apr76.... In the IEEE Spectum May 1975 on page 26 the compiler and the System 4 are talked about having a 4004 https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6368812 In the ACM's archives "Development of a portable compiler for industrial microcomputer systems" by LEROY H. ANDERSON The Warner & Swasey Company, it discusses the system and has images on the unit. https://www.computer.org/csdl/pds/api/csdl/proceedings/download-article/12Om... And finally the Computer History Museum put the manual up for download. https://www.computerhistory.org/collections/catalog/102686568 I'm still trying to get more info, but I think this is some decent evidence to show there was a 4004 based computer in 1972