There's an interesting article on the CR Blog
about 'The Art of Necessity
' - the ingenuity of Spanish printers in the early 1930's when avant-garde had spread through Europe into Spain.
The small print shops had to find ways of creating this new look with no new resources, so they imitated the style using the bullets, dingbats, rules and ornaments from their existing type trays and transformed them into new typefaces and illustrations creating the modern look of the avant-garde.
Read the full article here
.Images copyright CR Blog.