This section is from the book "British Dogs, Their Points, Selection, And Show Preparation", by W. D. Drury. Also available from Amazon: British Dogs: Their Points, Selection And Show Preparation.
At one time this Monkey Terrier, as it is called by some, was now and then found at a few of the larger shows. Since the advent of the Brussels Griffon, however, the Affenpinscher is not as often seen. To judge by the appearance and monkeyish expression of these two varieties, one could readily imagine that the former contained a big preponderance of the latter.
The Affenpinscher is an alert, intelligent little dog of some 71b. to 81b. in weight. It has a round skull well covered with stiff hair, large, dark, round eyes, black-bordered eyelids, and bushy eyebrows. As the name denotes, the expression is that of a monkey. The ears are erect, and on the Continent cut to a point. As in the Brussels Griffon, there is a prominent chin, with a hair-tuft and a moustache. Though the lower jaw is a trifle the longer, the teeth must not show. The body is short and compact; the fore legs are straight and well boned; while the round feet are well furnished with hair between the toes. The colour is different shades of red, as well as grey and yellowish; while there is often a black mask. The coat is wiry in texture. The tail is docked to about two-thirds its length.
 
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