Pre-flight X-ray of Neil's Boots. This x-ray was taken on July 7, 1969 by Jack R Weakland who worked in the NASA x-ray lab from 1968 to 1979 and told Ulli Lotzmann in 2002 that “he x-rayed everything from pipe welds to the astronaut moon boots, PGA suits etc. One purpose of this x-ray was to determine and verify that there were no sharp, foreign objects imbedded in the cloth - that is, needle points, pins etc. - that could puncture the pressure suit.” Scan by Ulrich Lotzmann
Source: Apollo Lunar Surface Journal.