Dad in the Lab

Given the 35 years he worked there, it's always strange to me that there aren't more photos of my dad in  his lab at General Electric's NELA Park. Still, among the few that have survived are some doozies -- the one above is among my favorites, as a) my dad is actually testing a lamp;. and b) the loud print shirt with the big collar, along with the long sideburns, mark this definitely as mid-1970's.