Leo,

The Jolly Trolly was kitty corner from the Sahara on Las Vegas Blvd. The Worlds largest gift shop is now in that location.

The International was opened by Kirk Kacorian. It is now the Las Vegas Hilton.

The Marina was the front tower (the tower facing L.V. Blvd) of the now MGM Grand on the corner of Las Vegas Blvd & Tropicana.

I'm afraid I can't help with the Dell Webb tray.

Ralph