Typewriter forgeries are rare, but still do occur

With the advent of personal computers, typewriters are archaic. So is the forgeries involving them. However, ancient documents crop up occasionally and I'm called on to examine a typewritten document.

Typewriters all have their own idiosyncrasies just like handwriting. Letters can be slanted or twisted, dip below or above the baseline, and will have chipped letters and defects from usage. Therefore, I can determine if different typewriters were used on one document, thus proving forgery.

Carriage lines, margins, and baselines are all measured to ensure the document was not altered in some manner.