My very cool sister scored these sweet gauges and gave them to me for Christmas!

  The temp gauge isn't missing, it's just dismounted for shipping to me, and I didn't put it back into the cluster for this photo

Anyone know what vehicles they came from? I'm going to guess that the Chrysler gauges are from the 30's or 40's, but I don't recall ever seeing the bottom set.. anyone know what they are from? Such a low reading on the tach makes me think it was to a flathead, or a diesel.