I have for sale a Stanley steam gauge 0 to 600 psi.
It will needs cleaning and servicing.
I have never used it and unlikely to need it.
I can send photos if interested.
Any sensible offer considered.
Sorry for the delay in replying but I have been away.
The DIR. across the gauge is 4 inches. It is the same as the one on my 10HP Stanley.
I got it in a box of Stanley bits a long time ago but never used it.