All three feature 4" single edged steel blades, "eagle/5" proofed folding spikes and smooth grips. 1) SMF gravity knife, 13 3/4" OAL, 3 1/2" spike, "F-T-P" carved into grip. Good as cleaned/sharpened. 2) Herbig gravity knife, 13 1/2" OAL, 3 1/4" spike. Good. 3) Paul Weyersberg gravity knife, 13 3/4" OAL, blade marked "RBNr." and "0/0561/0020", 3 3/8" spike. Good as sharpened.