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

ITC Stone Informal

family of 26 fonts from ITC

$26–$189

ITC Stone Informal™

family of 14 fonts from Linotype

$35–$178.50

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

• Linotype