PAL Injector Blades?

[(Evan)]

I recently got a shipment of a bunch of vintage blades, and among them was a 20 pack of PAL Premium Edge injector blades. I have no idea how old they are..but they look to at LEAST be from the 70's. Anyone know how these blades perform?

[Aevum]

i think PAL was bought by ASR quite a while ago, i would also guess 70´s

[Straight Arrow]

I they are not stainless steel they are likely to be unusable. The only way to find out is to give one a ride across your cheek.