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Vintage Casio Casiotone CT-640 Keyboard MIDI 465 Sound Tone Bank | eBay
Casio CT-640 Casiotone 61-Key Synthesizer with MIDI and | Reverb
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Vintage Casio Casiotone CT-640 Keyboard & Casio Stand | #3840276808
Casio CT-640 Casiotone keyboard electronic piano working portable synt – Pocatello Market
Best Casio Ct-640 Keyboard, Stand, Music Prop, Dust Cover, And Soft-side Carry Bag, Adapter for sale