I don't think they were that smart at all. You can turn the feature off in Word that superscripts the 'th'. They couldn't figure out how to do it so they left a space there instead. They missed one. It's a sloppy forgery at that.
Ah, you noticed, too. They did a little more than leave spaces (which no 1970's era typist would have done in ordinal number--147th as in Bush's discharge papers and some military memos posted on another thread--not 147 th as in CBS's 'memos'), they didn't leave them after lower case L's used as 1's in numerals. One place they missed the space, and another they both missed the space and forgot to use a lower case L instead of a one.