I remember the Flaig's advertisements in the American Rifleman in the 1950's. Finally, I visited the shop in the mid 1980's and found a really nice old-time gunsmith shop. Several actions were just lying on window-sills and the gunsmith was really friendly. IIRC, he said the at the original owners had sold the shop. He had two 1950's era rifles for sale and the workmanship was good; no idea how they shot.
Flaig's was located on the North side of the river across from Pittsburgh, up a hill off Evergreen Avenue. It was an old log cabin-type building.
Here's a 1060 ad in Guns Magazine for Flaig's (scroll down) :
http://www.gunsmagazine.com/1960issues/G0260.pdf
