4 vintage celadon porcelain Chinese rice bowls from the 70s-80s with koi carp reliefs

Rare, superb set of four Chinese celadon porcelain rice bowls, manufactured, with a maker's mark present on three of them, to be identified. Fine porcelain, translucent when held to the light, with reliefs of plants and koi carp on the exterior, smooth interiors. Vintage from the 1970s-80s. 6 cm high, 12.4 cm maximum diameter. The set is in good condition overall; however, each bowl has a small chip on the rim. One is minimal and barely visible, two are slightly larger (between 1 and 2 mm), and the last is larger (4 mm). These are generally quite discreet as the porcelain core is also celadon. They also have some minor scratches from use on the bases. Nevertheless, these are lovely, rare, and refined collector's items. Approximately 260 g each.