Old type catalogues seldom contain any unusual typefaces so you have to look to craft books for original letterforms. Art Alphabets and Lettering (1914) is an American book for artists and sign painters written and designed by JM Bergling which contains several pages of novel designs among its more familiar typefaces. Bergling evidently had a flair for alphabet design, there are more unique examples here than you’d usually find in a book of this kind, and Bergling’s letterforms are consistently stylish and inventive. In addition to providing a number of spiky variants on the Art Nouveau style (which by 1914 was going out of fashion), he also found time to draw his own version of a 19th-century staple, the Rustic Alphabet. There are two copies of the book at the Internet Archive: a complete one and an incomplete one, the latter volume possibly being a later printing since it contains a number of pages not included in the former.
