So with all the vent photos posted and sent so far, I started a master set on the WKC Flickr group that attempts to keep things in order. I'm less certain on the pre-date code vents, so help me out. My apologies if one you posted somewhere is not shown, just point me to it. If you have one that is not pictured, please take a decent shot and send it to me via PM or email at mgierke at mac dot com. I'll be working on the poster this weekend. It will not include them all, but it will be a colorful mix of old and new - just like the WKC!
http://www.flickr.com/photos/32306142@N07/sets/72157633285304532/Here's what you'll see so far...
Pre-date-code vents:
BAR-B-Q KETTLE - CHICAGO, ILL (is this the oldest one?)
BAR-B-Q KETTLE - WOOD DALE ILL (a couple)
BAR-B-Q KETTLE - ARLINGTON HEIGHTS ILL (no patent number - a few)
BAR-B-Q KETTLE - ARLINGTON HEIGHTS ILL (with patent number - several)
WEBER - ARLINGTON HEIGHTS ILL (outlined logo with patent number - a couple)
SMOKEY JOE - (painted - no text - a few)
RANCH - (painted - no text)
Date-coded vents:
A
B
E
F
H
J
K
M
O
AD
AU
DA
DD
DE
DH
DI
DR
DT
DU
DZ
EE
EI
EO
ER
EZ