EMS Synthi AKS Prestopatch x 2 - (Keyboard+Guitar)

via this auction

"2 Prestopatchs, which are Keyboard and Guitar for EMS AKS or VCS3. I have these for years. It works perfectly for those of you who have a Synthi AKS or VCS3. It works good. I bought it 10 more years ago, but rarely use in my studio."