Vintage Lee Denim Hat Railroad Engineer Reading Lines Patch True Vintage Cap 6 3/4" Union Made USA Sanforized. The cap is estate fresh from a clean smoke-free home. The  cap shows light common wear but no damage or signs of previous repairs. The tag that indicated the size is faded but the interior headband of the hat measures 21" that translates to 6 5/8 - 6 3/4 sized cap.