I have come across a planar 3 that I am looking to purchase, the seller doesnt know the age. It is a little unique compared to others I have been searching online. I am curious about the tapered sides to the base.
If you're on twitter, then tweet Rega (@RegaResearch) with the serial number and they will tell you when the turntable was built. I did this the other day and they messaged me back in about 10mins with the exact build date!