See abertronix (RSS) for SN 393844.
"Custom hardwood end panels installed. These are made from beautiful maple birdseye hardwood. They have been sanded finely and wood oiled. The ones in the picture have a natural oil but I can fit cherry stained color end panels if requested (see last picture for comparison).
Original plastic end parts are avaliable on request.

Original internal battery (which is soldered directly to the PCB) has been replaced by a battery holder/watch battery combination making future replacement much easier. The battery is needed for the retainment of memory when the unit is switched off. Original factory presets have been reinstalled.

All switches on the Juno 106 panel board have been replaced with new ALPS tactile switches (operating life of 1,000,000 cycles)"