Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Hi

If someone has the cap for the gauge "T" top could they take a picture of it for me, on and off if possible. I know it was used on the 4150 also. One of the pictures that Arnold had showed it but could not see details.  I looked at some pictures on line but most are not clear when blown up.  I cannot tell if there was a hex on it or knurled edge (straight or round).

Thank You and Happy New Year

Bob