National Geographic : 1928 Mar
MICHIGAN, MISTRESS OF THE LAKES 297 MICHIGAN MAKES MORE THAN NINE-TENTHS OF THE WORLD'S AIR RIFLES This workman tests the accuracy of the finished rifles in one of the Plymouth plants. He believes he enjoys the unique distinction of having fired more shots from more guns than any other living man, having shot rifles all day long six days per week for 33 years. A VARNISH SPRAY BOOTH IN A MICHIGAN FURNITURE FACTORY This new process of spraying paint and varnish on furniture is much more rapid than the old hand-and-brush method. It also produces a smoother and more uniform finish.