Moog Moogerfooger MF-104SD (analog delay, limited edition)

Note: Auction links are affiliate links for which the site may be compensated.
via this auction

"This is the very limited edition version of the MF-104 with almost double the delay time (up to 1.4 seconds). It's got voltage control over the feedback, time, and mix values so you can use an expression pedal or a modular synth to modulate these values for interesting results. There is also a loop send/receive so you can process the delayed signal with another unit for even crazier sounds.

The MF104SD was released in a limited edition of 250 units which sold out very quickly about 10 years ago and is considered the holy grail of modern analog delays nowadays."