Billy you are the link master. Some very interesting reading there. Thank you for taking the time to research and post. These links show the wonderful and great history this country has!
So the question to the board is: Should Elroy file off the burrs or leave it as it?
File them off, it will make you feel better! You gotta know all those early guys who used these tools probably dressed everything they used, every day?!
Your link to Simmond International jogged my memory. I recently discovered that SI is the current OEM for Craftsman files and file sets. Their series code is L SI . Their files look well made; definately not cheap chinese ****!
SI file manufacturing goes way back.