Something I do a lot is compare different lots of handwriting to try and work out if they’re done by the same person, and that usually involves comparing capital letters because they tend be the most distinctive. The smaller letters usually running together makes it hard compare them.

So, to these two letters. Both on 27 January 1885 by the same writer, Richard A. Bastow, building surveyor, to the Mayor of Launceston. Done with different pens, and the second one seems rushed, but even with that, there are similarities in the layout  (esp. in the “To” lines) and the shape of the words (e.g. “copy” and “of”).

Now, the address lines, particularly the capitals.

And the signature.