One of the central features of the Push Pin generation of designers — mainly Seymour Chwast and Milton Glaser — was a continued inspiration from, and reliance upon, physically layered compositions (using e.g., cello-tak) and photographic compositing. This approach tends to produce subtle dimensional effects and color interactions. In our Chwast collection there are lots of intricately-cut composites that clearly show how the final product was arrived at (some examples forthcoming!).
With Glaser there are fewer — he seems to have taken many angles at a particular idea before finding his way to the final product — but many of the stray mechanicals have survived and show interesting, individual states of development of various pieces. This is a mechanical for an exhibition poster for an exhibition put on by furniture company Beylerian.
And the final poster:
Beth points out that Glaser also revisited a similar dot layering in this poster for Fraser paper.