Parker 51 Teal Blue

Parker 51 Aerometric Navy Gray date code 50

Parker 51 Aerometric, Black. No date

Parker 51 2002 Special Edition in Vista Blue with sterling silver cap and Black with vermeil silver Empire cap

Parker 51 Demi in Cocoa. Pencil is still stickered.

Parker 51 Signet set. Pen is dinged but I straightened out most of the worst of them.

Parker 51 Special, stickered, does not appear to have ever been inked.