Wilson A2000 SP year question

I am looking to find out an estimated age of a glove. The stamp on the inside of the thumb says AFU. Any help would be greatly appreciated. Thank you in advance.
A gathering place for colletors of vintage baseball gloves to discuss, buy, sell and trade
https://www.vintagebaseballgloveforum.com/phpBB3/
https://www.vintagebaseballgloveforum.com/phpBB3/viewtopic.php?f=10&t=5720