Available for sale here is this Panasonic Road Bike 

Early-1980's Panasonic PT-5000 

This was a light-TOURING model, which meant

longer overall fitting. The sizing is as follows: 

53cm Seat Tube, Center to Top 

56cm Top Tube, Center to Center 

One of the nicer quality bicycles offered by Panasonic at the time and of course, Handmade In Japan. This is a light-touring model which means wider tire clearances, mounts for racks + fenders and more. A great bike for utility city riding. 

I purchased this from the original owner who had it sitting in storage unused for well over 3 decades. The bike has been fully serviced and cleaned to perfection! 

$1350