Welcome Tonya! That is around a 1945-1948 Simplex Servi-Cycle. On these early years, the motor has the number, which would give the exact year. Being that this bike is missing so many parts, it would not be economically feasible to restore to stock. It is, on the other hand, a perfect candidate for a more modern motor and drive train. Look around in the non-original engine section of this website and you will see many bike with Honda gx200 and clone motors on them.