A kind ebay member has told me a lot about these guitars (thank you Rob)

From 1985 Kramer American series and focus guitars were all made By EPS in Japan. The guitar listed here is a KRS-123 Japanese domestic market guitar with addition of the Richie Sambora electronics and later upgrade of the bridge and pickups.

The only difference between the American series and the domestic market guitars are the electrics and the hardware. This guitar has the Richie Sambora electronics plus Seymore Duncan pickups with upgraded hardware with bridge improvements over the American series. The tuners are unmarked Gotohs.

This is the original 86 issue of the RS signature by Kramer. Identified as an early issue by the rare block logo at headstock. Later these guitars were marked with diminishing Kramer American series logo on the headstock although all were manufactured in the Japanese EPS factory. 

This guitar had some improvement from original with the new Floyd Rose with body inserts (better than the wood screws on those marked American series) and the new Seymore Duncan pickups.

She been correctly stored with strings slack so I will restring with new strings and tune for the new owner. If you would like to visit to inspect and play the guitar please message me to arrange.

The pickups are genuine Seymore Duncans ....the bridge and middle are 

I2S79   TB4   20081209

The pickup nearest the fret board is

I4B29.  SH-2N.  20090406

Some wear marks/scuffs consistant with age that add to the vintage character.  All works and sounds great. This guitar has the twin switch Richie Sambora circuits...a players guitar that would make a great Xmas present for any Bon Jovi or Sambora fan.

Outside UK pls message me.

Any questions pls 00447740257982