The contact information in the ad also provides more information on the evolutionary time line of the company name. You can read a bit more about the SCI logo evolution in that earlier 700/800 advertisement blog post.

The Model 800 sequencer in this ad has the newer 'Sequential Circuits Co.' logo in the bottom right-hand corner of the unit, unlike the Model 800 in the 700/800 ad just six months previous that included the older SCI logo. The second reason this ad is interesting is that it helps pin down the timeline of Sequential Circuits' ever-evolving logo and company name. Or, perhaps they purposely decided to stop using musician endorsements after this ad ran for some reason - maybe the costs were too high? Either way, its still interesting to me to see Mr. Maybe SCI was testing the musician-endorsement waters since other synthesizer companies like ARP and Oberheim were actively using musicians to promote their gear around the same time. The only other Model 700/800 ad to date, from six months earlier, didn't drop any names at all. If you are familiar with other SCI ads you may have noticed that musician endorsements were not a common occurrence for SCI around this time period. The first reason I find this add interesting is the fact that Rick Wakeman makes an appearance. What an interesting ad to start 2010 off with!

Model 700 Programmer and Model 800 Digital Sequencer from page 5 of Contemporary Keyboard December 1977.

Sequential circuits model 700