1950s vintage Roy Rogers on the Double R Ranch picture book early reader western story

Vintage Sandpiper book for early readers, Roy Rogers on the Double R Ranch. The printed 'bookplate' inside the front cover is dated 1951.

This has great color illustrations, though the pages are yellowing. The cover is a little worn, but overall this looks very good. It's a story about a little girl with a horse and a taste for adventure!