John,
The OMAS period at Masi would have been somewhere around 1984 or so, when "Masi Worldwide" was operating in San Marcos, CA. I think Jim Allen can fill in the details of that situation if you need more info regarding it. OMAS is not part of the "early CA Masi" period, as far as components go.
Brian Baylis
La Mesa, CA
When if ever did Masi use OMAS HS and/or BB? Under any circumstances would OMAS components be original to an early California Masi?
John Kitson
Pasadena, CA