I un-boxed my 4312As last month, and have been wrestling with what to do for the finish. Linseed oil? Mineral oil blend? Wax? Nothing?
They have been in climate-controlled storage for the past couple of decades, no UV, humidity controlled, so they're basically new. The finish feels like new / fresh-sanded smooth, and the original matte finish (oil and wax originally I believe) is perfect.
Following this thread there seems to be a pretty high level of restoration and finishing knowledge.
I don't want to alter the appearance, but would like to keep them protected as well as possible. Is there something that would accomplish this or just leave them alone until they actually do need something?