I believe that this is Gerenal Dynamics Group. It was located on the South side of Main Stree/Hwy 720 East of Preston Road. On the North side of the road was the horse track on the property of Southfork Ranch owned by famous Oil man Cloyce Box where the T.V.show Dallas filmed its first season. My father worked at this location for several years. Today the original building is still there but looks completely different as it has been built into a church. This church is a satellite church of The Potter's Church pastored by T.D. Jakes in Dallas.

It was originally built as a college but never materialized. It sat vacant for years and was bought by PC Dynamics. It caught fire around 1994 and sat vacant for years.