The Pearl River is a Chinese TLR camera for 6×6cm exposures on 120 film. It's a slightly improved variant of the Seagull 4B, and was made in Guangdong from the 1960s to the 1980s. The leather carrying case may be embossed "Canton Camera Manufactory." The camera's nameplate may include a diamond logo with the Chinese characters 珠江 (Zhūjiāng, i.e. Pearl River), or only roman letters in the export version.
The "Pearl River" brand appears on both 75mm f/3.5 lenses, and on the shutter offering speeds from 1/25 to 1/250 second and B. Film is advanced using a winding knob and a red window frame counter.