Handsome Orion poses in a sun puddle in front of an ARP 3260 keyboard. This is the keyboard that goes with an ARP 2600 synthesizer. From Justin Sullivan (@justin3am) on Twitter.
The original ARP 2600 didn’t have a keyboard built in. The 3260 was the keyboard that one could attach, and usually appears with it in regular use. You can see our video from NAMM 2020 testing out the 2600 reissue from Korg (which includes the keyboard).