Answer: NINER

AnswerCrossword Clue
NINERSan Francisco ballplayer, briefly
NINERGold Rush figure, for short
NINERForty-... (prospector)
NINERIt may come after forty
NINERNFCer
NINERPhonetic alphabet number
NINERCertain numeral in NASA-speak
NINERSan Francisco gridder, briefly
NINERJoe Montana, once
NINERNASA-speak numeral
NINERFrisco squad member
NINERFrisco footballer
NINERJoe Montana was one
NINERS.F. gridder
NINERMontana in the '80s, e.g.
NINERSan Francisco footballer, in brief
NINERSan Francisco gridder, familiarly
NINERSan Francisco football player, for short
NINERSan Francisco footballer, familiarly
NINERForty ..
NINERForty-... (old prospector)
NINERMonster Park NFLer
NINERMontana, once
NINERSan Francisco player
NINERSourdough, for short
NINERBay area NFLer
NINERSF gridder
NINERNATO Phonetic Alphabet number
NINERFrisco NFLer
NINERForty-..
NINERFrisco gridder
NINERS.F. athlete, Forty-....
NINERNumber in the NATO phonetic alphabet
NINERWest Coast NFLer
NINERWest Coast gridder
NINERMontana was one
NINERSan Francisco NFLer
NINERCBer's number
NINERAviator's number
NINERSteve Young, briefly