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Sometimes, the cartooning was larger that others!
Noting the size of the industrial flourescent  fixture, some idea of the scope of this mural is realized.
Remembering that there was a REAL job to be done, the cartooning still came through, even on technical diagrams.  (Note the unique and characteristic 'elbow' on this diagram.
And a typical engineering problem note, showing that at least part of the time, work came first!
Patriotism -- strongly expressed in cartoon form -- in a good cause!
Cartooning used to advertise the product.