The Supreme Court doesn't have a commissary; they have a cafeteria.
We would also have to consider the cost of a bun during that era. Unfortunately, the price of bread is currently in dispute.
The source of hamburger (ground beef) is cows.
Hamburger
It does. Hamburger meat is ground beef. They are the same thing.
Hamburger is ground up beef. It contains proteins- and fats.
Hamburger is ground up beef. It contains proteins- and fats.
A hamburger patty is made of ground beef from a cow.
Hamburger
There are about 470 calories in one cup of raw ground hamburger meat.
There are several names ... Ground Beef, Ground Round, Ground Sirloin, etc
hamburger
A hamburger's main ingredient is ground beef, which has no starch. However, there are many methods to prepare the meat prior to cooking it as a hamburger. This can include use of breadcrumbs as a filler, and if these are not used, there most likely is no starch in the hamburger.