Classifiers in sign language
Classifier is a sign that represents a class or group of objects, subjects or referents.
It also can function or act as a "pronoun" which is referred to an object or a subject. E.g. the horizontal 3-handshape representing a group of vehicles such as car, truck, bicycle, motorcycle, submarine, etc.
Classifier can be an adjective that describes a size, shape, depth, texture, etc. of a person or an object. It can be incorporated with a verb.
Identify different types of classifiers.
Erbauch, Mary S. "Scissors, Paper, Stone: Perceptual Foundations of Noun Classifier Systems" September 1984. http://www.eric.ed.gov/PDFS/ED249787.pdf
Also see linguistics in sign language.