I think I've identified $5 chips issued in 1963 from the following Casino's:

Castaways, Las Vegas
Christmas Tree, Reno ?
El Cortez Hotel - Casino, Las Vegas
Don French's Bonanza
Golden, Reno
Holiday Lodge, Reno
Honest John's, Las Vegas ?
Mizpah Hotel
Oliver's Castaways
Riverside Hotel & Casino, Reno
Silver Palace, Las Vegas ?
Sparks Silver Club, Sparks
The Mint, Las Vegas
Town Hall Round-up, North Las Vegas ?
Zanzibar, North Las Vegas