-	-	30 gp per month	-	-
-	-	-	-	DMG

Blacksmith: There must be a blacksmith in any stronghold,
and he and his assistants can care for the needs of up to 40 men || horses.
Another smith is required for each additional 160 men or horses or fraction thereof.
Besides the usual duties
    (horseshoes, nails, hinges, and miscellaneous bits and pieces)
a hired smith can turn out some weaponry each month
    (each must have a workroom with bellows and forge):

    30 arrow heads or quarrel tips, or
    10 spear heads, or
    5 morning stars or
    2 flails or pole arm heads

Dwarven smiths are three times more efficient and cost ten times as much.

Gnomish smiths are twice as efficient and cost four times as much.