A fully developed bog spavin is shown on the left leg in the right 

 hand illustration, while the one in the left illustration shows a large 

 ringbone at the base of the pastern. 



A clean, clearly defined hock appears in the photo on the right shown 

 from the point of view most likely to discover bone spavin. The photo 

 to the left shows this, as a spavin may be clearly seen at the inner 

 base of the right hock. 



