A complete Chinese-English dictionary

It is an old book. I have this book so I can add the cover image. It is about 19x27x3,5 cm book. The cover is so thin , in black color for background. The page paper is light brown. It written in English and Chinese letter with how to read/ spell it in Chinese. I myself can not read or speak any Chinese words, but I know this book is very valuable. I wrote about this book in my blog http://kunoantik.com/buku/a-complete-chinese-english-dictionary-1920/
Sorry my English is not good....