Here's a shot of several pins I've picked up over the last year or so.

I'm curious about the two pins on the left. What situation would the far left pin be used in? I've seen maybe one or two others like it.

The second from left looks like a typical pin but is made of iron. Would it's use be in a factory situation where wood may have been vulnerable?

The pin in the middle is a standard size pin and the pin second from right is perfect for a a CD 282 or 288. Found a bunch of those in an Idaho antique shop.

Any info, suggestions, or wild guesses would be appreciated. Roger