From looking at your photo, the whippet looks a very muscular type whippet. Looked like it could of taken its fair
share of knocks and bumps.
The whippets iv'e seen are much more boney, small, fragile looking, that would not stand a good season on rough ground, hunting not (ferreting with nets) etc.....
There was a chap here who owned a whippet, moved down from the north last year. His whippet ended up back up north due to the land here and the dog spending more time in the vets!! Lovely dog too.
I'm with Reload on this one.