This might be the start of an interesting discussion.
Can I assume that on the gate, they just carefully masked all around the raised letters and then shot it with a contrast color ?
Tom Brownell in his book, "How To Restore Your Chevrolet Pickup" states that "Tailgate lettering 1955 and earlier was painted the same color as the tailgate, not contrasting".
Jim Carter's catalog makes the same statement:
http://www.oldchevytrucks.biz/p/1947_1955/fullpage.php?page=022&session=1029501 This is not to say that contrasting lettering does not look nice. My non-original turquoise '54 pickup came to me with white tailgate lettering and it looks like belongs there.
Tim