In the early 90s,  Les Holroyd from Barclay James Harvest, sold Frailers a rare Gibson c1964  EBS1250 twin neck guitar. Les told Frailers that the Gibson was allegedly owned by Procol Harem who recorded one of the top hits in the 60s which was a Whiter Shade of Pale.  A customer from London bought the guitar from Frailers for £1100. Another Gibson EBS1250 c1964 was seen recently on Ebay in the USA for $15,500 dollars.  How's that for an investment!