I found this attractive piece of artwork by Thomas Wells on a sample sheet (about 8 inches wide) that was intended, I think, to show customers what illustrations were available for Constellation Line calendars back in the day. Here's the full text from the back:
A FARMLAND FANTASY
by Thomas Wells
This Subject, in this size and numbered as indicated, is carried in the following SERIES of CALENDARS
Sterling Series ............ No. 1432
Regal Series ............... No. 1632
For other SERIES in which this subject is carried, please see back cover of Constellation Line Price List.
Please replace this Picture in Envelope "B"
And here's the information etched on the front of the illustration.
I also discovered that this illustration was used for a jigsaw puzzle produced by the Consolidated Paper Box Company (under the brand name Perfect Picture Puzzle) sometime between the mid 1930s and early 1960s.
Beyond that, I don't have much information. And I don't know if there was a connection between the Consolidated Paper Box Company and the Constellation Line.