Así de a vuelo de pájaro parece que trata de una Les Paul recording, no es un modelo tan raro, de hecho lo conocía y se hicieron bastantes de estas. El mismo Les Paul ocupaba una.
Parece que llegue tarde para descifrar el misterio, ya que estaba preparando esto. Aquí algo información al respecto que pille por Internet:
[img:2vf39aee]
http://img172.imageshack.us/img172/3158/02lprty8.jpg[/img:2vf39aee]
[b:2vf39aee]The Les Paul Recording[/b:2vf39aee]
The Les Paul Recording Guitar is probably the best known of all of Gibson's Low Impedance models and was produced in the greatest numbers. It was introduced in 1971/72 as a replacement for the ailing Personal and Professional models. The first version (top picture) was produced from 1971 until 1977. The second version with a slightly altered layout was produced from 1977/79. The main difference between the Personal/Professional models and the Recordings is that an Impedance Transformer was built in to the body. However, this did not alter the fact that these guitars still performed at their best when plugged into a mixing desk at Low Impedance setting or, when used with an Amplifier, with a suitable Impedance Matching Transformer at the amplifier end of the connecting lead.
Features:
2 angled Low Impedance Stacked Humbucking Pickups
Bound rosewood fingerboard with small block markers
Bound carved top Honduras Mahogany body - Brown, Sunburst or White
Split Diamond inlay on headstock
Grover tuners
Controls for Volume, Treble, Bass, Decade, Microphone Volume, Pickup Selector, Tone Switch and Phase Switch on panel
Black laminated plastic pick guard
Long travel bridge
Chrome plated hardware
Built in impedance matching transformer (switchable Lo / High)
[img:2vf39aee]
http://img412.imageshack.us/img412/8913/03lprxt4.jpg[/img:2vf39aee]
[b:2vf39aee]Version two:[/b:2vf39aee]
Black added to range of finishes
Pickup selector switch moved from the control panel to the more usual placement for Les Pauls
Impedance switch removed and replaced with two socket arrangement on side of body giving separate Low Impedance and High Impedance outputs.
Shipping totals: 1971 - 236; 1972 - 1314; 1973 - 1759; 1974 - 915; 1975 - 204; 1976 - 352; 1977 - 362; 1978 - 180; 1979 - 78.
[img:2vf39aee]
http://img412.imageshack.us/img412/9206/04lprgm8.jpg[/img:2vf39aee]
[img:2vf39aee]
http://img402.imageshack.us/img402/3985/05lprnk9.jpg[/img:2vf39aee]
[img:2vf39aee]
http://img402.imageshack.us/img402/115/06lprlc5.jpg[/img:2vf39aee]
[img:2vf39aee]
http://img402.imageshack.us/img402/6884/07lprhy7.jpg[/img:2vf39aee]
[img:2vf39aee]
http://img402.imageshack.us/img402/1575/09lproh5.jpg[/img:2vf39aee]
------------------------------------------------------------------------------------------------------
[img:2vf39aee]
http://img402.imageshack.us/img402/1791/13lprqn8.jpg[/img:2vf39aee]
[b:2vf39aee]The Les Paul Personal[/b:2vf39aee]
The shape of the Personal was virtually identical to that of the basic Les Paul guitars but just a little (1/2 inch or 12mm) bigger all round. Features were as follows:
2 angled Low Impedance Stacked Humbucking Pickups
Bound ebony fingerboard with block markers (as Les Paul Custom)
Body binding front and back (like LP Custom)
Split Diamond inlay on headstock
Grover tuners
Unusually, this instrument was the only one (?) ever produced by Gibson with a built-in Microphone on a "Goose Neck" which was plugged into a socket on the upper bout of the instrument allowing announcements etc to be made by the player through the guitar amplifier. Les can be seen putting this feature to good use in the documentary "The Wizard of Waukesha"
Controls for Volume, Treble, Bass, Decade, Microphone Volume, Pickup Selector, Tone Switch and Phase Switch
Black laminated plastic pick guard
Short travel bridge
Gold plated hardware
Special lead with built in impedance matching transformer. The Gibson circuit diagram indicates that Guitar Output Socket was a stereo type jack providing separate cabling for the Pickups and the Microphone. I'd like to hear from anyone with an original lead for a fuller description?
Shipping totals: 1971 - 95; 1972 - 49; 1973 - 2
[img:2vf39aee]
http://img402.imageshack.us/img402/707/14lprzb0.jpg[/img:2vf39aee]
Les with his personalised Gibson Les Paul Personal showing the "Goose Neck Microphone"
------------------------------------------------------------------------------------------------------
[img:2vf39aee]
http://img402.imageshack.us/img402/5854/15lprcu5.jpg[/img:2vf39aee]
[b:2vf39aee]The Les Paul Professional[/b:2vf39aee]
Features similar to Les Paul Personal except:
Bound Rosewood Fingerboard with crown markers
Schaller tuners?
Plain headstock
Special lead with built in impedance matching transformer
Shipping totals: 1971 - 116; 1973 – 2
[img:2vf39aee]
http://img402.imageshack.us/img402/2695/10lprpm3.jpg[/img:2vf39aee]
[img:2vf39aee]
http://img402.imageshack.us/img402/6287/11lprnj3.jpg[/img:2vf39aee]
[img:2vf39aee]
http://img402.imageshack.us/img402/7548/12lprjw6.jpg[/img:2vf39aee]
Espero allá servido de algo la información.
Saludos
