I couldn’t read the first name of the signature line at the end of the letter in paragraph 52 of Gregg Shorthand Manual Simplified, second edition. I was about to ask you all but I decided it would be more polite to see if someone had already posted the question in this blog first. In searching, I encountered the keys to the kingdom page and was able to look it up. Thanks for making that available!
The outline looked for all the world like the word expression “eh” written in longhand. Certain that that was just a coincidence, I made it out to be Tereshtex. Thus the full name of the letter writer would be Tereshtex Mason. Tereshtex is not a first name with which I am familiar so I was pretty sure I was wrong. Lo and behold, when I looked it up I found out that what I thought was a first name really was “eh.” It turns out the letter writer was none other than E.H. Mason. Now I know how initials are handled in shorthand.