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Ones on the Left are all early 60's.  look at the top left - just like #2 but no hole in the center.
The small hose // large Booster hole - are Midyear Corvette Z06. 
67 Camaros could wear any of those others on the left with no questions in my mind.

I have been observing these for some time - was thinking of writing an article for the NCRS one day.
I really am darn positive about these.  - the 80's valves look nothing like any of these. Others as well as the multiple circle style were used into the early 80s)

many vendors made these valves, as well as all the different parts for GM.  Millions of cars- millions of check valves.
lots of versions.  thanks.....

these are some i just had laying around the house.  The #2 (not shown) is on both my 67 cars. my 69 is wearing a #1.  But many of these others are still correct for those years interchangeably...

Would have had more, but the wife keeps putting the boxes in the garage when i am not looking and i can't find anything anymore.   lol

Great and interesting but can you show some survivors with those #1 valves! I have not seen one survivor with that type valve and agree 100% with Mike.

I am not talking about survivors, those are always suspect anyways.  I am talking about cars that were crashed back in the day and have been parked and untouched since then.  Those are the yards I went to for 30 years, and where I grabbed and observed all the different examples.  I have 1000's of pictures, bet if i go through the crates (not digital - Fotomat) I could show you.  One of these days sir....   One of these days... 

Handful?  lol  - - - I have shoe boxes full of all of those.  Plenty of those #1s were on the 1969 cars.
And no way can you say that only one version is correct and the only style used.  At least 4 different vendors at that time - - all with slight variations.   Been pulling these from Junk yards for 30 years.  Pretty darn positive about this....   

This is what Jeff has.

Mine is generally what the Midyear Corvette guys wanted.  I just produced what an NCRS guy sent me a picture of.
I can make anything, so when we all figure out what the Camaro used - -just show me.  I would only take me a week to duplicate.

You can tell those guys at the Camaro Nationals that your check valve is perfectly correct for 1969.
There were like 6 different vendors making those for GM at the time.

Generally I like to see #2 on 67's and 68's as well as lots of different versions for those also. 1969s generally got the #1 in your pictures
There where many additional versions that are completely acceptable for all those model years.....
ie: Flat with diamond in center / Flat with no diamond, Ridged and tapered.

It was all a big transition during that period for that item.
The multiple circles #3 was adopted after 1974/5 or so.  And then there were a few versions of those also --the center circle got deeper.

I Have so many different designs of these things that It is clear that these were produced in HUGE quantities by many vendors simultaneously.

67 and 68 were exactly the same except that 1967 had a salmon colored tip. 
I have seen 4 different versions that were used E - M - W - B - could be more....

I watched that video a while back, and did not believe what I saw, and that was the cap with ears.
I have restored a bunch of the round caps over the years and looked at quit a few original cars with there born with assy line gas caps including 1970 Chevelle's that used the same "Round" Stant vented anti-surge cap.
I would have argued long and hard that the ear cap had not even been made in 1969.
Any thoughts on the one in the video ? Maybe a early engineering test thing ?
Shauger have you seen the video with the ear cap ? Interesting, never say never ?

Mike

I would also have argued that there were no gas cap ears in 1969.   
And this is not a case of different vendors - these were all made by Stant.

All the yard cars that I was 100% sure were original and had been crashed back in the day had the no ears cap. 
But who really knows for sure? 

Hey that sure makes it easy, that one looks just like the cap they are selling at walmart today....   LOL 

[A look back at the Camaro, through the eyes of contemporary Chevy designers]

GM looks over 5 Generations of Camaro, but forgets there was a 67.....     

A look back at the Camaro, through the eyes of contemporary Chevy designers -
See more at:
http://blog.hemmings.com/index.php/2015/03/05/a-look-back-at-the-camaro-through-the-eyes-of-contemporary-chevy-designers/?refer=news

here is the old thread.  Gardner has not fixed his issues.
D&R makes a wonderful system at 1/2 the price..

the fun starts on page 3.....
http://www.camaros.net/forums/showthread.php?t=168582&;

the reproductions being made today look pretty good, but they are metal.
the originals for 69/70 were chrome plastic.

I have a pile of originals, but can't find anyone to do a reasonable price for the plastic chrome process.

I wouldn't sell mine for that - no way....

lol I figured. 

Is it true that the whereabouts of only 2 of the CAN BB IPC cars are known?  This one and mine?  I thought I heard of a few more out there?

This may be a new can of worms - would the code be different for the same alternator part number when used at Norwood for Camaros, then it was when used at St. Louis for Corvettes.  Cause then there may be lots of changes needed?

Typically my lists are based on Corvette research....
which is farther along then most other Chevrolet car models.