Reproductions are very, very close if not exact. The letters may be a bit bolder or just appear to be due to the comparison between brand new and 50+ years of wear.
I've never seen a "two line" label on a '66 that I could absolutely verify as original.
The later '66s that I have seen, have the same "one line" label, but they have silk screened (flat, not raised) logo, lettering and border.