T-34A (B-45) serial number mystery

The T-34 Association list gives those as the Manufacturer’s Serial No (Seq 1159 to 1178)

http://www.t-34.com/aircraft/T-34_serialnumbers.pdf

I can’t find an online list of those countries that obtained B-45s (T-34A), as opposed to the later T-34C

I’m meaning military serial numbers, I cannot find out which country had T-34s with an “H” prefix in the serial number?

By “serials” do you actually mean c/n’s?
If you do, there is no record of any c/n’s in the “H” range. Beech-built T-34As c/ns were prefixed with “G”…