[DavidG]

As Sheldon has indicated (Chapter 19). Yours appears to be an original that has been restored along with a reproduction fitting for the radiator hose. While your temperature fluid has lost its red color, at least it is still there as many of those restored lose their temperature fluid all together and have to be redone.


Note the difference in the shape of the very end of the probe of the NOS gauge in the photo below and yours. During the restoration process the tip is cut off to provide a means to replenish the fluid and a thread plug is used to seal it off.