This was probably the initial valves which means it was installed in the early 80's. Anyhow, can anyone assist with identifying this valve stem? For some reason, I think it's a Gerber. The only reason I think that was because I saw a Gerber stem in the catalog at Home Depot which had a 34 stamped on it. This one has a 53 stamped on it. Neither HD or Lowe's had a match. Also the packing nut is busted off, which is why you don't see that in the picture.