Yes, the time will come, but now is not that time.
The magic-markered F -> M designation is possibly one of a kind, and along with the DOB makes this board VERY collectible.  I would never offer this board up in a trade, either.  If you want another board, buy one.  If you want to pass this on to a collector, just sell it straight up.  No one will have anything to trade with as much COLLECTIBLE value.  
The earliest known Model M is a pretty cool thing to own.