Bear "It's all about having fun."
There are only two stock yards available right now that I know of. One is from Walthers (PN 933-3047) and the other is from Lifelike (PN 433-1378). I have both. If I had to guess, I’d guess the one in the photo is the Walthers due to the grey coloring of the plastic when it’s new.
The first pic on this web page shows a stock pen located immediately behind Swift Meat Packing. Does anyone recognize the pen? Manufacturer? Walthers part no.?
http://cardhouse.com/travel/az/statefair.htm
I've checked the Walthers web site and I don't think that it is on it, but I could be wrong.