NO RESERVE             NO RESERVE              NO RESERVEThe serial number is 128551 which I believe to be the first year they made from what I can find it's a 73. This one is in great condition. I collected most all the 70's - 80's oddball Gibsons and they are all going to the chopping block. I retired 2 years ago and we need the room. 50+ guitars doesn't sit well with the wife especially since I can't play guitar. Reading all I could, people don't give these up easily.I charge $90 for shipping. It costs me $15 for a guitar box and I ship the cheapest way. Whatever postage money that is left over I will credit to your Paypal account.The  L6-S is a solid body electric guitar. It was the working musician's descendant of the  jazz solid body . It was the same shape, very much like a wide , but with a 24 fret two-octave neck, the first Gibson guitar to have this.The popularity of the L6-S gradually dropped after 1974, despite high profile endorsements from the likes of  and . , , ,  and , , ,  also used the model during this period. All models were dropped from price lists in 1979. The L6-S Custom remained in the catalog in 1980 and was still being made in the Nashville plant. The L6-S is now generally considered to be the most underrated of all the Gibson solid bodied guitars.[]The L6-S came in three variants; all were -bodied with twin super- pickups.Over 12,000 L6-S Custom instruments were made. Each guitar is made out of a one-piece maple body and a three-piece , with a choice of rosewood, maple or ebony fingerboard. Controls include a six position pickup selector, master volume, mid-range and treble  controls. At the time of its introduction, the L6-S Custom was simply called the L6-S, not gaining the "Custom" badge until later, when the simpler L6-S Deluxe was introduced. The L6-S and L6-S Custom are identical.The L6-S Custom is noted for its six way rotary selector switch, complete with "chicken head" pointer knob. Starting with switch position #1, in the most counter-clockwise position, the available pickup switching options are as follows:Both pickups, in seriesNeck pickup, aloneBoth pickups, in parallelBoth pickups, parallel out of phase, with the neck pickup's bass response restricted thought a series capacitor.Bridge pickup, aloneBoth pickups, series out of phase.The capacitor in the #4 position gives a fuller tone than the otherwise very nasal out of phase tone. The capacitor serves to limit the low end response of the neck pickup, and also phase delays the signal from that pickup, resulting in a fuller tone, not too unlike the #2 and #4 switch positions on a  guitar.Note that these switching options are for the original 1970s L6-S with sealed ceramic Bill Lawrence Humbuckers and are somewhat different for the 2011- reissue L6S, which use 490R/498T split coil pickup switching and different wiring.