Hello we have this beautiful paint made by (signature) Z. Pavić (maybe) this is the story told me by my dad, around 1970 he was a Barman in Tennis club in Porto Cervo Sardinia, he swapped his Cartier watch with this paint, recently I was watching this in my home and by curiosity I start to investigate but, I never see anything, we would like to know about a story even a value if possible, paint on a glass with this specific technique

Approx frame 64.5 cm×43cm and glass 43cm×38cm