The early hand hammered Sabians were denoted by "Handhammered" as opposed to "HH".
I'm no Sabian historian (just your ordinary cymbalholic) but as far as I know:
they started off as HH with the discrete HH down in the "rainbow"
then they became Hand Hammered in that font I think of as kind of "Chinese" looking because the strokes are wider at one end than the other.
later they became the HH series again (plus ça change, plus c'est la même chose)
Sorry I can't put dates to the changes, and don't have pics.
Do you know of a period before the discrete HH down in the "rainbow"? That would extend my knowledge.
My favorite logo (and Sabian cymbal) is the early Sound Control HH one in a maroon color where sound control is written diagonally across the "rainbow", and the HH discretely in the corner. Nearly managed to score one once...but it got away.