The 1932 Peters Aircraft Co Play Plane, or National Aircraft Builders Corp (NABA) Sportster was a single-place monoplane aimed at the lightplane home-builder market.
Originally powered by a 28hp Lawrance engine, by 1938 it had a 40hp Continental.
They were priced at $987, and $1,185 for a proposed two-place version. Two were built, NX10682 and NX15511 but unknown if any were built by others.
All Aero 