Another series I've enjoyed streaming on Amazon during this Covid-19 lockdown is "America In Color"... the shows are presented by
decade: 1920's, 1930's, 1940's, 1950's, 1960's... the 1940's episode had a segment on early Las Vegas and I grabbed these images...

Fremont Street

Casino Sign

Bugsy

Flamingo Pool

El Rancho Vegas

Slot Machines