snip

MALLORY
MADE IN U.S.A
TYPE CGS
21000MFD 16 VDC
POS + 85C
MAX SURGE 20 VDC
CGS213U016R3L
362 8906 56699

They all date from around the early 80s.

Here they are pictured among Sprague caps of the same vintage:
http://www.users.on.net/~fzabkar/screwcaps70.jpg

I'd say that 8112 is a YYWW date code.

It is a YYMM date code. I have several pieces of vintage medical electronics
equip, and the date codes on the Mallory caps all match closely the date
codes on other parts.

" MALLORY
MADE IN U.S.A
TYPE CGS
30000MFD 15VDC
POS + 85C
MAX SURGE 20VDC
95661319
235-8102K

This one is from Feb 1982 - and it's Kosher too. ;-)

Remember Sprague's motto?
Don't be vague, ask for Sprague.

a little levity . . . very little . . .
Regards,
Tom