Q: I recently purchased a copy of Manon Lescaut by your publishing house. It has no date in it. I wonder if you could look at a few photos attached and let me know what date you think it was published and any other info you may have such as monetary value.
A: This book was published in 1899-1900 as part of the Petit Trianon Series. See http://henryaltemus.com/series/series143.htm
It is a reprint originally came in a labeled box. The left side of the cover has a stereotypical decorative vine design. The right side has various floral or other artistic patterns.
As of this time I have seen 27 different right half covers. A typical box is shown.
The books of this series only have value if the title is collectible. Your title is not and thus the book has only nominal value.