I tried to find the answer to this question and was unable to. I did find out he used his hat for letters, bills, and papers instead of his pockets.
IT was a railspitter
Abe Lincoln's hat was called a stove pipe hat because the rise is so tall and straight with no flare that it resembles the length of a pipe. Your welcome
They measure ur head in inches and find that hat that's an extra in in circumference
perimeter
If you divide the circumference of your noggin by Pi, that will be a pretty good approximation of your hat size.
2 pi units or 6.28 units
Pi
The Smithsonian has it and it was on display a few years ago. Not sure it still is, but there is a photo of it online.
Lincoln's tall top hat simply symbolizes power and a good fashion sense. Even though no one wears them now, they used to be a symbol of those who were wealthy and new what was "in."
In order to determine your hat size you have to get a tape measure and measure the circumference of your head 1 inch above ur eye brows. After that find a hat-sizing conversion chart to determine what your hat size is.
1 foot or 12" high.
To measure hat size or head circumference, use a flexible measuring tape and wrap it around the widest part of your head, typically just above your ears and eyebrows. Ensure the tape is snug but not too tight, and note the measurement in inches or centimeters. If you don't have a measuring tape, you can use a piece of string to measure the circumference, then lay it flat against a ruler. This measurement will help you determine your hat size based on sizing charts commonly provided by hat manufacturers.