6″ Vertical Boiler- the ID plate
Last task before the boiler inspector. The unique identifier. In my case the VR-18-18 code is stamped on the boiler in a safe location, or engraved onto a plaque which is silver soldered to the boiler shell.
I chose the latter method. And used the opportunity to put my name and date on it.

CNC’d the info onto a brass plate, and bent it into shape, I use V-Carve Pro for engraving jobs.

Then silver soldered it into position. In this case I used a lower temperature silver solder… “StayBrite”, so I did not risk melting the previous joins.