curious about valve lash setting/check

I'll be damned, maybe someone put the notch in? it was correct. View attachment 1715425756
as you can see in the photo, it's not nearly as 'keyway notched' as 70's picture, so I'm guessing this is as Rusty said, some are not notched.....and someone hit it on the grinder? (kinda has that 90 degree look to it, from the corner of a wheel). this is great news, as it was oiling properly, right? and I got the chance to meet and learn from some great people :)
it's back to being set and ready to be covered (and I cleaned the covers last night while setting the valves). all is good, and I have a warm fuzzy feeling......to crawl into bed and sleep.
THANK YOU ALL! that comes from the heart. wish I could buy a round for you all (don't get too excited, well drinks....just kidding).
table 17, your pizza is ready.