via this auction
Pics of the inside below.
"JSI Progue Synthesizer Moog Rogue Prodigy.

'PROGUE is a monophonic analog DIY synthesizer inspired by the two well-known vintage synthesizers: ROGUE and PRODIGY. While both of them had their pros and cons, the goal with the PROGUE was to combine their best qualities into a single portable tabletop synthesizer.
The prime focus was maintaining those specific sound characteristics that still makes them desirable today and to add some of the features we always thought they lacked.
From independently modulated PWM and Oscillator Gate Sync to passive High-Pass Filter and precise Fine-tuning of the Oscillators, PROGUE delivers it all without forgetting the modern self-evident functionalities like Polychain via MIDI.'”