Then of course there was the use of Fluoroscopes to check for proper shoe fit. http://www.orau.org/ptp/collection/shoefittingfluor/shoe.htm
I saw an old short filem where folks walked through a pool of mercury to clean the suits on their backs. I don’t recall if they were wearing hats, though.
Heh, reminds me of when commercials of today tell you to visit their website for more information.
Then of course there was the use of Fluoroscopes to
check for proper shoe fit.
http://www.orau.org/ptp/collection/shoefittingfluor/shoe.htm
I saw an old short filem where folks walked through a pool of mercury to clean the suits on their backs. I don’t recall if they were wearing hats, though.