Auto Osaka Industry Co., Ltd., Osaka City, Daikosato, 1952
オート大阪工業株式會社
Auto Osaka (O.O.K.) sold a model called the Auto Sun (オートサン号) as shown in the ad, as well as something called the New Olympus (ニューオリンパス号). The Auto Sun used a 147cc ohv 4 stroke engine and nothing else is known about the company at this time.