Butter-Knife sounds O.K. but not as nice as drop leaf to me. When i was 10 or 11 years old and getting into guns my neighbor who was 80 years old with a lot of guns showed me one.
He told me the bolt handle resembles a leaf and is dropped down and was a drop leaf bolt. I believe that old man bless his soul and forever more and since will be a drop leaf.
By the way this is the only one I have.
Bill

William