Vintage handmade silver Tree of Life pendant with blue turquoise stones

Vintage artisan handmade Tree of Life pendant. With natural blue turquoise stones. Silver tone metal, with soldered bail ring. Looks like solid sterling silver, but I can't find any stamps. Tarnished from age, otherwise in excellent condition. 5.3 cm pendant (with bail). 20" silver tone matching chain is in used and overall ok condition, and is included for free.