I don't think it's been fished, but there are some small cracks on the drag knob on top of the spool. The item "Very Rare Zebco 1970 Fishing Reel in Box" is in sale since Monday, January 7, 2019. This item is in the category "Sporting Goods\Fishing\Vintage\Reels\Other Vintage Fishing Reels".
The seller is "jacksonfish" and is located in Blue Springs, Missouri. This item can be shipped to United States.