didn't think he had Pearly on the first album, but Pearly is right there on the cover.
he had a late 50s Vee before Pearly, so I'd imagine that was used somewhere.
I'm had a quick listen through the album, and I can't hear any Esquire in there, though I wouldn't rule it out.
There seems to be two setups - one with a much thicker tone, and another with a brighter tone. Maybe he just changed amps, or maybe its the guitars - hard to say.