SIEL DK-80 rare vintage keyboard synthesizer, produced in Italy in 1985.

It's a cool analog synth with digital controls. It is also bi-timbral with a split keyboard mode giving you 2 polysynths in one keyboard! 2x six point envelope generators, 2x 24 dB/octave low pass VCFs, 2 LFOs, 12 voices - 2 DCO's (sine, sqr, tri), 1 pink noise generator.
Another great feature is a 2-track realtime sequencer, MIDI In/Out/Thru and a NICE built in Chorus.

This synth come in excellent cosmetics and perfect working conditions, it's a short video with some presets:
 https://youtu.be/RfXYx4Uquw8

I can ship it well wrapped and packed in Italy with a cost of 48 euro, Europe 95, USA approx. 140 euro...