I simply think that very few of that pennant were ever made (as opposed to being stashed away in Yankee collections). It was probably a very short production run to be sold only at the '62 World Series. You never see them come to auction or eBay, and it's been that way for the last 30 years.
Much like Rob's 1954 WS Pennant, it's just a super scarce variation. BTW, did you guys see what the '54 recently sold for in LOTG?
See link below....
http://loveofthegameauctions.com/Rar...-LOT20768.aspx