I'm looking for an English poem, in fact I think it was at least two poems, that consisted of capital A's, representing the Ford Model A, moving as if in traffic, and another that had both A's and T's. The first, with only A's, was two vertical columns with only a few A's, representing the beginning of the automobile age when only a few model A's could be found on very simple roads. The second was a more complicated "road" (not just a vertical column) filled congestedly with both A's and T's.
Even though, if I'm recalling correctly, this has no words per se, it was in a collection of poetry I once encountered. I had thought it was by cummings or Sandberg, but I've been unable to confirm.