Phrobis M9 Bayo New in sealed wrapper?

[LabradorGuy]

What would be the value of a new Phrobis M9 bayo that is still in the sealed plastic? I've had a few new old stock mil surplus Phrobis M9 bayos, but I've never seen an old stock Phrobis that was still in the sealed plastic. I had to have it, so I traded some knives for the Phrobis.

How rare are these old never used Phrobis M9 knives that are still in sealed wrapper.