1959 Overlander 26′ #26-S0177-359
California s/n 26S0177. Rather an odd serial number. Notice anything else odd about this one? How about a door on the streetside in addition to the curbside, and the unique over-under windows. Most likely this was a mobile lab or mobile demonstration unit. The lack of a Twin or Double designator enforces this thought.
The 3-59 after the s/n indicates it was made in March 1959.