The alphabet is expressed with circles. Without telling what they are, it would be kind of hard to see what alphabet they are. However, this would be cool to use to title a mod (incorporating the theme into the type).
Green Caslon Alphabet Print from House Industries. Hand printed serigraph on acid-free paper; Featuring Benguiat Caslon from Photo-Lettering. Original alphabet by Ed Benguiat, digitized by Christian Schwartz.