FRANK B 28cm Italian PROTOTYPE Black Mamba Stiletto Swivel bolster checkered automatic knife

FRANK B 28cm Italian PROTOTYPE Black Mamba Stiletto Swivel bolster checkered automatic knife with unique bayonet style blade. One of FIVE prototype knives made by Beltrame and each one slightly different, so this is a ONE OF A KIND! I got this information directly from Sara Beltrame. The knife measures 27.9cm (11 inches) open with brass liners and steel bolsters, button and safety cap. The unusual bayonet style blade is all black and has raised bumps on the spine and pill shaped holes punched out of the blade in relation to those bumps. The ricasso is stamped FRANK B and there is some wear on the surface of the blade on the backside near the bolster from opening and closing. Black checkered scales seem to be made of a synthetic material and are in excellent condition. The knife works well with blade tip deep and centered in the well closed, strong snap and tight lockup open. Safety works. EX++ condition.