Stay arm assembly used to prop Williams/Bally playfields up in the service position.

Used on the following games:
Attack From Mars
Cactus Canyon
Champion Pub
Cirquis Voltaire
Cong
Corvette
Dirty Harry
Indy 500
Jack*Bot
Johnny Mnemonic
Junkyard
Monster Bash
Medieval Madness
NBA Fastbreak
No Good Gophers
Road Show
Scared Stiff
The Shadow
Theatre of Magic
Tales of the Arabian Nights
Who Dunnit

Williams/Bally reference #A-19562.1.