Since it's a listed factory unit, a call to the manufacturer might have been able to shed some light. If you use there units regularly, give it a try.

"Famous Names"
BTW, One of the owners of the company I work for, although no relation to the other, is named...Mike Holt. On one job I worked on, the GC's super was named Neil Young, and the owner's rep was named Jim Nabors..for real [Linked Image]