[Milsurplus] Defense Department Drawings found on Computer cards - ?

[John Hutchins]

All -
The better half and I were scouring an,  Antique Mall in the Austin 
area.  I came across stacks of Defense Department Drawings, IBM style 
computer cards with 35MM negatives embedded in the body, some mechanical 
and some electrical, some site type in nature.  ?Never the less, 
Questions abound?

1.  When did the defense department implement this sort of archival 
practice using IBM style punchcards?
2.  Were these archives, on punch cards, ever digitize and stored on 
electronic media such as disk drives or tape, at a later date?
3.  I wonder, question, if the WWII TM manuals were ever archived in 
this manner using IBM style punchcards?

Again best description a Computer type IBM punch card, with a cut out 
for a 35mm negative  and a base drawing description typed and punched 
into the card.

I assume declassified and auctioned off for scrap.
Funny things do appear at the antique mall-
Later
Hutch