My research shows the pins were mostly steel. A big majority of knives back then did not use a guard.
Here is what was commonly called a trade knife back then, these are from Old Dominion Forge they were used by many nationalities in trade with the Indians in the fur trade. The difference in blade shape, handle material and few other differences, is what denote who the nation was that was supplying them for trade back then.
These pictured are pretty much true to form. No guard and steel pins. Guards would have been mostly steel, if the knife had one.
True as soon as the Bowie knife was born in America, Sheffield wanted in on the money being made in America over the story surrounding the Bowie knife fight and they began to import many knives to America. Here is a link from Wikepida about Sheffield,
http://en.wikipedia.org/wiki/History_of_Sheffield
See what most folks don't under stand that America as we know it today did not exist. You had the states on the east coast and most of the rest of America was territories. Trade moved West and the big jumping off point was St. Louis, here is a link to the history and the westward expansion as seen thru St. Louis Missouri,
http://www.city-data.com/us-cities/The-Midwest/St-Louis-History.html
Knives were primarily tools of the trade. Often like I said it was bring what you got! Folks looks at old pictures from way back and say see their is a knife like that. Remember back in the early days of photography the subject/s had to stand still for a long period of time. A lot of what shows up in photos involving trappers, traders and some American Indian photos were props brought by the photographer to take the pic.
There would have been use of brass on the east coast but as it moved westward much slower. Hollywood would have everyone to believe that every blacksmith in every settlement and those that moved westward did nothing but manufacture knives. When in reality most of them were to busy in the every day tasks of repairing what was moving westward at the time or what had made it that far and their was no way to get parts for it. It was kind of like, can you fix this! The bigger majority of knives back then were trade knives used to trade with the Indians and research will support that the backers of the expeditions going forth to supply the Fur traders, trappers and such were ordered to be cheap with no frills! Another thing that supports this is the old blades that have been dug up, if they had brass guards and pins they would still more than likely exist. They would be corroded but they don't rot away like steel in the ground. Most blades dug up are only the blade with pin holes but no pins, and no guards. I have a book with pics but at present my scanner doesn't work so got no way to post pics.
This is a link to the knives of the man I spoke of with knowledge of this time period and his knives are some of the most true copies of that time period bar none that you will find.
http://www.wickellerbe.com/ You will see that few of the knives have brass pins or brass guards.
This is beginning to overtake the original thread by Walt My original intention was only to advise Walt, not start a discussion on history correct!
So if you want to continue the discussion we should move it to a new thread! Give me a yell and I will try and start a new thread if that is wanted!! Truth and Hollywood do not always run hand in hand!!