Note this is a Model E, not Model D. That would mean it is "The Welsh Minimoog" manufactured by Alex Winter's MOOG Music in the UK. See this post for more details. Also see the Modusonics label below. Note the Donimoog was yet another minimoog produced after the original Moog music folded.
Note how the switches are different from a standard Minimoog, and includes PWM.
"For Sale -
This for demonstration only, for the purpose of showing that this synthesizer is in great working condition. Shows the following: laying down of tracs, basic use of panel components and sounds."
"1984 - 1985 Vintage Sequential Circuits SIX TRAK synthesizer Model: Prophet 610 in the original box... This 4 octave keyboard comes equipped with midi in and out and when linked to a drum tack machine, combines the multi-timbred ensemble with a programmable rhythm section. Each sequencer (A or B holding six separate traks) allows for an 800 note memory allocation per sequence, and this memory storage can be increased to 4000 notes when combined with a model 64 sequencer. Of course, with midi, the playing field is wide open to many possibilities that go beyond the two I have mentioned. The back panel also includes audio out which can also be used for a head phone jack or a speaker output, and a footswitch controller jack is also present. The foot switch is not provided, but is an inexpensive purchase that can be obtained through any music store. This fun machine also includes a pitch and modulation wheel, polyphonic and unison mode functionality, programmable track speed and volume, track erase, memory – full warning, legato function, voice stacking, a flexible arpeggiator and 100 ready –to-play factory programs."
"This is my Bugbrand Boardweevil running in to the 291e and then in to a channel in the 227e. It makes a cool extra sound source for the Buchla. I shot this at the end of the night with the only light source being the lights from the Buchla."