This is a fine example of the quality that went into the old school folderd. this MSA Co Marbles Gladstone Michigan was made from 1903 to 1911 . The knife has a 4 3/8" long blade that is still full and dam near all there . Nice patina with a blood groove.There were many varations of this folder and this one has the german silver U bolsters and the hard rubber handles with Marbles safety axe co Gladstone Mich, USA on one side of the handle and an empty panel on the other. handles are perfect . locks up and opens nicely with a strong spring. OAL closed is 5 1/2" OAL open with the blade guard extended is 10 1/4". Great ppiece of american history. Thanks, Jim B