Vintage 1973 Bell Motorcycle Custom 500 3/4 open face helmet 5 Snap 7.5 Kawasaki

Description

This is not my area of expertise, so I'm going to describe this helmet as best I can, if you have questions, please don't hesitate.
Firstly, there is no size indicated...I wear about a 7.5 inch fitted hat, and it fits snugly on me.
The inner styrofoam insert is intact, but it is loose. See pic #6 for what I mean...it can be completely removed, but more than 2 hands makes it an easier job.
The helmet seems crack free. There are some scuffs as pictured on the exterior shell.
The left strap is stamped with "Kawasaki Conventional" and the rest of the stamping isn't really readable...it LOOKS LIKE "7    16     8" and a stamp pf "DKWS   0014YU...." but they aren't deep impressions and they are 50 years old, so it is tough to read :)
As stated earlier, DO NOT HESITATE to ask questions, and if I completely botched something, be a pal and point it out to me.
Shipping via USPS priority mail w/ tracking.