kevin Exton

I have a .177 Air Rifle it's stamped the following: TRADE MARK. "Champion". BEST QJARITY. 1ANIFACTUFEDEY. SIMAYACO. OSAKA. JAPAN. S/N 1327 and stamped on the top of the barrel "AIR (RIFLE) Cal 4.5 mm The Best Qjarity and 1Anifactufedey are how they are stamped and lettered on the gun Any help with the year and other information would be greatly appreciated Thank you.