Denon Cassematic 12 cassette auto changer deck

Very unique item.  A cassette auto changer.  Just load in up to 12 cassettes and it will play and advance through them.  Solid and built like a tank. Original Denon, made in Japan.  Tested and the play and tape load and advance mechanism are working.  Sounds really good.   FF and RW functions don't appear to be currently working.  Sold as is.  Thanks for looking.