Everywhere I look I find lots of old plow wrenches, from $2 to $7 for a handful.
In your opinion should these be gathered in anticipation of future value?
I'm no expert on farm wrenches either, but I have a few, and some are valuable. Here is an example of one I picked up for 2 dollars, just because I liked the looks of it. When I got home and researched it, I found one like it just sold at aution for $450.00. Now for some reason, this particular buggy wrench must have the "BABCOCK" mark on it to fetch that kind of price. Some of these 2 to 7 a handful could have gold in them, or just be the price of scrap metal. You must do your homework to truley know before you buy, in my opinion. I believe we have a couple of hardcore farm wrench collectors on our site, that may be of more help.
Good Luck,
Wayne