Vintage cheapest MANDARINA DUCK real leather crossbody bag

Such a very cool minimalist geometrical shape real leather bag from Mandarina Duck italian brand.
It has adjustable shoulder straps.
Material:
100% Leather
The shoulder strap is not real leather.
Made in Italy.
Measurements:
11,5''x10''x2,5''
Very good condition, except the strap,please see the photos! cheapest