Only ever seen three of these in 30 years of guitar collecting and they go for over $500 U.S. D second hand on eBay. both Neil Diamond and Don Everly lent their names to Epiphone for the SQ 180 models. Super Slim necks, incredible shaped bodies and normally a double pickguard over and under the sound hole - every one of which I have seen has always been warped and wrinkled because they're extremely thin and I always disliked the way they looked so I removed mine completely and there is no sign they were ever there. No fading no scratching no residue. Cool star inlays in the fretboard and from memory a maple body with spruce top but would be happy to be corrected on the specs if anyone knows better. Plays and sounds like a dream but the neck is too slim for my big hands. Despite this I wont be answering any lowball offers - I know what its worth and I will keep it happily. A truly rare jem.