The attached photo is of my 1936 ES150. It is all original but as you can see quite played (not by me). You will notice several top cracks repaired and cleated for me some years ago by a luthier. They are solid but you can see and feel them. I would like to someday have the top (and rest of instrument) restored (yikes I said it) to a somewhat less distressed appearance.
I would be interested in hearing your advice and opinions on this taboo subject. Thanks.
N.B. - A noted luthier suggested that French Polishing would renew the finish.
.