Just snagged these. Wonder how old they are?

I would say from the 80's or early 90's. There is usually a production date or code on them. I still have a bunch of them, and shoot them all the time in my plinking and practice loads. Never had a problem or misfire yet, but they are kept in a cabinet in my reloading room (cool, dark, low humidity). I have LOTS of primers, and from many time periods. Below is a picture of some of the older ones, and CCI' newer packaging.

I will say I have been surprised at how well primers and powder keep.

I broke out my muzzleloader which I haven't shot since I was in college. I used some opened No. 11 primer caps and the same Pyrodex RS that has been in my metal non air tight flask since 2005 or so. I had to shake the flask to break it back up into loose powder. Bang went off without a hitch, didn't even have to change the sight lol. These centerfire primers look to be much better made and preserved than the No. 11 musket caps I was using.

Awesome. It’s pretty cool to see some older packaging.

An answer posted on another site from CCI/Speer

"Ever wonder when your Speer/CCI product was manufactured? Since 1995, on center-fire ammo, rimfire ammo, bullets, and primers the manufacture date is encoded in the first four places of the lot number, which is printed on or impressed into the box or packaging. The format is L##L where L is a letter and # is a number. Letters and/or numbers following these I haven't figured out yet. The first letter is the month, January through December -- A through M, respectively, skipping I, which looks like a 1/one. The numbers are 01 through 31 for the numerical date; single digit dates get a leading zero. The second letter is the year, 1995 through 2008 -- A through P, respectively, skipping I and O (I looks like a 1/one, O looks like a 0/zero). Therefore, my Blazer 9mm Luger ammo lot number A09P1 was made on January 9th, 2008. My Speer 9mm Luger Gold Dot ammo lot number C12J33 was made on March 12th, 2003. My CCI Large Pistol primers lot number H14M was made on August 14, 2006. And my Independence-brand 9mm Luger ammo lot number C12N3 was made by Speer/CCI on March 12th, 2007. My Blazer rimfire ammo lot L08NQ3 was made on November 8th, 2007.
Check out the lot numbers in Speer's 2002 ammunition recall notice and you'll see the pattern."

I have some Magnum Large Pistol primers packaged like that. Purchased early in the 1990s.

Enjoy!

Not as old as these

Pretty cool to see all the old packaging. And thanks for the info Blank.

I’ll give you $.65 for them prime Thump

I’ll give you some to hang onto if you want. I thought they were pretty cool. Best I can tell the Federals are from the late 50’s and the Alcans from the 60’s. I’ve got quiet a few so I don’t mind sharing some history with ya

Well guess I need to make another trip !