As I said, I typed it on an Underwood typewriter with carbon paper copies.
Are you old enough to know what carbon paper is? I guess I should insert a smiley face icon to show that I'm not being snotty :o)
Oops, still smacks of snottiness...
Not understanding 1970s and earlier technology was the thing that destroyed the CBS/DemonRat attempt to fake the Bush ANG memos. Whoever physically produced the actual fakes was probably fairly young, under a lot of time pressure to create them, and didn't even know the tremendous technological changes that have occurred in document creation in the last 20 years, and, hence, produced laughable fakes.
I am old enough to know what a memeograph machine is. Can you figure the rest out for yourself? NOTE: no smiley face.