MyFonts is not yet authorized to sell this font directly. However, Adobe and Linotype offer the font for sale at MyFonts:

ITC Stone Informal®

family of 6 fonts from Adobe

  |  available for Desktop

$29–$147.90

ITC Stone Informal™

family of 14 fonts from Linotype

  |  available for Desktop, Web, App, Epub and Server

$35–$178.50

You may be able to find this font at the following web site:

• ITC