Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums General Petroliana Discussion Gasboy pump, multiple key locks

Came upon this Gasboy model 390 pump. What was the purpose of the multiple key locks?[img]http://[/img][img]http://[/img]

Different businesses had access to the fuel all with a different key. In the late 60's era i loaded a lot of product out of the Shell refinery in S. Ca. using that system. Was replaced later by computer.

Thanks for the explanation.