The museum found out about the knife not too long ago and...

The museum found out about the knife not too long ago and sent a couple of their people to Monmouth to talk to me. After looking at the knife and the documentation, they asked me if I would be willing to donate it to the museum. I said that perhaps I would in the future but for now I preferred to keep it. They then pointed out that it couldn't be proved that the knife really was Lincoln's and I asked them if they felt if that was the case, why did they drive all the way from Springfield to acquire it? They didn't seem to have an answer for that.