Vintage Single Stitch Eagle Jersey Made in USA Size Small

This is a vintage jersey that is so neat. I’d love to know what is was made for all those years ago, and who was Lil Bit 09 the Anchor for? And what is an anchor? This was not a cheap iron on made jersey. My theory is that Lil Bit was fast as lightening! Measurements-armpit-armpit 17” Armpit to hem 17” Dark orange with navy lettering