My dear master and mentor would have been 100.
https://www.radiofrance.fr/francemusique/podcasts/les-essentiels/centenaire-du-luthier-etienne-vatelot-de-yehudi-menuhin-a-mstislav-rostropovitch-2021843
Right advice.
The varnish seems to be oil varnish, some of them never get hard or dry enough. Instruments by Charles Enel, for example, had still issues after 50 years.
Yes, I was just pointing that I don’t make artificial marks or wearing on the edges for exemple, but colour variations can be considered as antiquing. For me it’s a way to give life what I’m not able with a very uniform varnish.