RARE Vintage Philadelphia Eagles quarter zip sweater Eagles Colors no logo Small

This was purchased at a local NJ estate sale today; it is a fine knit quarter zip sweater in Eagles colors; no logo - no size inside but it is a small or XS; 17" across the chest, 22" from shoulder to hem; no pulls or holes; I got several vintage Philadelphia Eagles items there today; this is probably from the 80's - very special if you want to wear something for the Eagles but aren't a fan of logos.