VTG 1940's Fidelitone Floating Point Long Life Phonograph Needle, Permo Inc

Description

VTG 1940's Fidelitone Floating Point Long Life Phonograph Needle, Permo Inc..
I have several of these needles from a display.  They are all (except for the one I opened) in their original plastic packaging, though some have small tears to the plastic.
They all have corroded shanks but the needle itself is not corroded.  I don't know what that means for usage, but maybe just the packaging would be of interest.
If you purchase more than one and have any interest in the display (see last picture) I can include that if you request it and it's still available.
I do accept returns if the item is returned in the original packaging.