K1 to the left of valve stem is a Mfg Stamp
Same as the K1 in the center hub section
So its
K1
0
4
9
by the valve stem, for full clarification
The trim tag looks pretty too.
Don't know if its the lighting or real - but the blue seems to be popping through the black on the raised characters just the perfect amount.
Like some custom 2-tone work practically - its so even.