Tube identification

I bought some new Aero Classic Type III TR-67 tubes second hand and I'm trying to confirm if they are "Leak-Guard" tubes. Hard to tell from the Spruce site.

Thanks in advance for any enlightenment.

Craig

I purchased 2 from Spruce and could never tell what they sent me...$$$$

gasman said:

I purchased 2 from Spruce and could never tell what they sent me...$$$$

Click to expand...

Did they leak?