For what kind of product might this mysterious trademark be, that appears to show tablet PC's from outerspace orbiting the earth? From our 1933 Chinese Trademark directory.

The brand in question is the Myriagraph by Japanese company Horii & Co. Ltd. (堀井謄寫堂). Before the appearance of photocopiers, mimeographs were used to print documents by hand and were often used to print handouts, examination papers, leaflets or abacus exercises. The more you know...