Never seen a Lee signature with an 'n' quite like that, or each of the individual letters of the "Lee" as open as the "a". Also, the underline here looks like it's own separate stroke, written after his last "e" comes to rest, instead of that underline being the same continuous line started at the 'a'. While I've seen minor variations in Lee signatures, this strikes me as odd. The relative proportions of each letter is off, compared to what I've seen. I would pass. I'd have a hard time believing that Lee signed this if I saw him write it myself.