Elmo instruction manuals for the K-120 SM, Super 110, Sound Editor 912/S, and ST-600 2-Track. by Elmo.: Manuscript / Paper Collectible | Wittenborn Art Books
8mm Forum: FS: ELMO ST-600 D 8mm Sound Projector
ELMO ST-600 2-Track 8mm Sound Movie Projector #658 | eBay
Elmo ST-600 (ST-600 D M, ST-600 D MO, ST-600 M, ST-600 MO, etc) series, belt (counter belt) - Van Eck Video Services
Elmo super 8 projectors / Sound & silent / 8mm movie