The on-sale date is the publication date reported in the U. S. Copyright Office filing in the Catalog of Copyright Entries, Part 1: Books; Dramatic Compositions; Maps and Charts; Index, New Series, Volume 1, July-December 1906, Number 2. Class A book. Copyright number A 140186. 2 copies were submitted for copyright on June 12, 1906. Copyright is given to R.F. Outcault.
The price is not listed on this book. Information on how much it was sold for was found in an advertisement published in The Publisher's Weekly (R. R. Bowker, 1872 series) #1861 (September 28, 1907) on page 928.