Ooooooh! that one has an extra zero in there to count, a very special indicator indeed. Dunno, though. My tenths indicators drive me crazy enough at times without getting one with twice the accuracy. But, hey, if nothing else, you got bragging rights, bro!
If you tire of chasing the half tenths, I will help you out and take it off your hands for what you have into it, good buddy...
I have two B & S 's that are metric. They read down to .002 um. About 0.000078". Also have one that reads .00005", too. Way too sensitive for the work I do! Also have a old school B & S electronic indicator that reads down to 10 millionths increments! I can almost detect error in Gage blocks with it! Worn one's that is.