It's quite bold and straight. It falls straight down towards the hem.
The 501 was fitted a leather patch, while the 201 was fitted with a linen patch. The print is much thinner, but the stamps "32-xx" (XX is illegible) and "201" are just barely legible.
The top of the back pocket is reinforced with bare rivets. The arcuate stitch has mostly disappeared, but not in a very ungainly shape. The photo shows the right pocket, but it doesn't have the red tab.
"L.S. & Co" and "S F" are engraved, with the "o" in lower case. It is made of copper because there is no magnet reaction.
As on the front, "L.S. & CO" and "S F" are engraved, but on the back of the rivet, the "O" in "CO" is capitalized. After all, the magnet does not respond and is made of copper.
It is possible that the car was originally painted with black lacquer, but it is not possible to tell if it has been painted. Unfortunately, the rust has gotten pretty strong.
It's hard to tell from the photo, but it's a 2×1 light ounce of fabric. The width is thick(0.55 inch(1.4cm)).
It is a steel doughnut button, stamped with "LEVI STRAUSS & CO". The suspender buttons are also the same ones used.
One top button and three fly buttons.
Like the top button, it's an iron donut button with the same engraving. Interestingly, the fabric of the button part is used horizontally.
Behind the dome-shaped top button. It is made of iron. It's hard to tell from the photo, but the fine pitch chain stitching under the waistbelt suggests that it was made after the mass-production sewing machine was used.
The crotch is also reinforced with rivets as if it was a pre-WWII model.
The lower end has been treated with a cutout.
On the back of the coin pocket, selvedge part is used.