As a matter of interest for the list, thanks to Ronda Sewald and her contacts, we now have a good translation from the tape box - 联环牌 Lian Huan Brand [a kind of brand] 立体声 录音 磁带 stereo [recording] magnetic tape 广播电视部 磁带厂 Department of Radio and Television, magnetic tape vault factory Characters are written in Simplified Chinese, which means it probably was not only produced but also disseminated in China. Thanks so much Ronda!