Vintage & Rare Scooby-Doo Action Figure

Vintage & Rare Scooby-Doo Action Figure. I have scrolled through many sites, and cannot find this exact version of Scooby-Doo. Toe nails on all four paws seem to be unusual. The legs bend forward and backward but are not jointed at the knees. Tail can twirl around. Please look the pictures over carefully. They are part of the description. Measurements: 4 1/4" long x 4 1/2" tall x 2" wide.