Looking for age

Westinghouse AC - SER# FSA051106930
Fedders Furnace - SER# EN457390

Thanks in advanced*!!!*

Westinghouse has a convoluted history, but I believe the third letter indicates that it is 1978.

The EN for the Fedders indicates March 1978.

I have plenty, how much of mine do you want? :wink:

Cheap too!