Bally Beat The Clock Original Playfield Engineer Drawing

Description

This is an original Bally factory playfield engineer drawing of Beat The Clock machine (model 0C70).
A great one of a kind piece of pinball history.
This is a full scale drawing approx. 24" x 45".
The drawing is a mix of pencil and ink on Mylar.
In very good condition, some typical signs of storage.  Please see photo's for best description.