Examination of early pottery will reveal simple patterns scratched or incised, consisting mainly of straight lines arranged in zigzag or herringbone form; in some instances the pattern is apparently the result of pressure of some simple implement, resembling what is known in plastering as trowel point.
Such details are simply those that could be produced by means of some form of point, stone, stick or finger nail, and are not representative of any known form; and it is not till a much later period that any indication occurs suggestive of a growth line or natural type.
Curves seldom occur, certainly not in the scroll form, though rings singly or concentric are among the early details; but these could easily be the result of pressure by the ends of hollow reeds.
The evolute wave and scroll that figures so largely in later ornament was presumably in imitation of wire-work, forms which the material would readily suggest, particularly the continuous line of the evolute.
Development in the direction of relief ornament in primitive pottery is indicated in the decoration consisting of incrusted pellets and slithers of clay.
There is ample evidence that human appreciation and desire for expression in art is natural and instinctive, as is demonstrated by the marvellous work of the Paleolithic etchers and bone carvers, who may well be considered the first impressionists.
Early Impressionism
They could have only studied many of their subjects at a respectful distance, and this adds to the merit of the successful embodiment of characteristics.
The work is invariably realistic, that is, imitative of natural form, and is evidence of insight and appreciation that for the time and working condition is quite extraordinary, and is in distinct contrast with the earlier ornament, which is not in any way imitative of, or traceable to, any natural suggestion.
On investigation it will be found that artistic expression has generally three phases; the first where purely inorganic details are employed such as directly arise from the process and material involved.