100 yrs old, Vintage Cold painted terriers mounted on colored Onyx Bookends, 
Probably 1920’s
The terriers have negligible paint loss considering the age, this adds to the character of these fabulous pieces.
The Quality and beauty of these Onyx pieces can be judged by the translucency to light.
The onyx has a few chips to the edges from age related wear
See all photos.
5 inches tall X 4.25 inches