Cresswell (O.D. - there seem to be a few Cresswells in numismatics) lists a whole pile of regional mint names for this type, as well as "War Lord" issues, "marked on the reverse with varying numbers of horses etc.", which just sounds weird to me. I think the latter we would consider charms these days.
His line drawings (appalling quality by modern standards, but still outstanding work for a period when there was virtually nothing available on the subject) show C263a with "straight flanking strokes" on the left-hand element in the bottom character (by analogy I'd say "arms by the sides") and C263b with "diverging flanking strokes" (i.e. arms at 45°), making yours C263b.