Good friend of mine has inherted one of these. From early to mid '70's I'd guess. Apparently his dad purchased from player in Charlie Pride's band in the "70's. He has some documentation to corroborate this. This guitar has two decks with card deck symbols for the inlay. Has 8 foot pedals, a knee controller and a Fender volume pedal. I don't know the name of this right now but can find out. Still has original manual and case. I think this guy paid $2 CDN for this at the time. Vintage Guitar price guide has a 1978 model that sounds similar to this valued at approx. $900.00 to $1000.00 usd. However I think this is a different model based on the purchase date (pre-'78). Also, who plays these esoteric instruments? or teaches? Seems like somewhat of an occult art form. I've always loved the sound of these things. Friends have lap steels but this thing is a very cool relic. I'm not trying to sell this with this post, just find out what I can about these instruments.