I was gone for a little bit so excuse me if this has been solved.I ran down to the registrar of deeds office and looked up files from '72. I found examples of a clearly more modern looking type, very similar to the memo. the apostrophe's all were straight. I couldn't however find a secretary that used the raised "th". I don't know if that helps much but it seems closer.
There is a reason that the apostrophes are straight. They had to serve as both left and right when making quotation marks.
You can't use curly apostrophes unless you have special ones for both left and right.