Welcome Fester! Your fire wall numbers are probably the VIN or serial number of your Jeep. If you Google "Willys F134 Casting Numbers" you will find...
Well guys, I guess I am a true willys owner now. I finally had my first breakdown. My Dad and I went to take Flossy out for a quick drive last night...
Thanks, gentlemen. I didn't know the pcv valve could separate into parts. So I unthreaded it and found the same internals as BM's photo (thanks, man)...