(http://glassgallery.yobunny.org.uk/albums/userpics/10318/normal_DSCF1828.jpg) (http://glassgallery.yobunny.org.uk/albums/userpics/10318/DSCF1828.jpg) (http://glassgallery.yobunny.org.uk/albums/userpics/10318/normal_DSCF1832.jpg) (http://glassgallery.yobunny.org.uk/albums/userpics/10318/DSCF1832.jpg)
Click either image to enlarge.
Full set of images on GlassGallery, all with click main image to enlarge feature, via http://glassgallery.yobunny.org.uk/displayimage.php?pos=-20690
H. 5" 12.5cm, l. 7¼" 18.2cm, w. 4¼" 11cm, weight 1lb 13oz 823g.
I'm now sure that this fine black example and Sue's are both Landseer/Newfoundland Dogs by John Derbyshire. Their bases match the Derbyshire Greyhound, so this gives us an approximate date for the Landseer/Newfoundland of circa 1874 — certainly mid 1870s.
Note the differences. The black example has a slightly broader base than Sue's green example, and you can see from my base image (at the top) that the gadrooning under the dog's head mould line has been combined to give a smoother profile, all suggesting that there were initial problems with extracting this piece from the mould, and remedial work on the base of the mould had to be carried out.
Bernard C. 8)