And just so its linked and we don't need to include it in this thread here is a related thread about the black paint applied to the bottom side of the hoods. If we need to add or correct those details we can add that over there
http://www.concoursmustang.com/forum/index.php?topic=195.msg969#msg969Another detail is the number in the lower reinforcement panel right behind/below when hood is open, front lip. This is sometimes sanded off or removed if the hood bottom has been sanded or repair has taken place. Very early cars typically don't have this in the mold process for some reason - Bottom picture though its not really clear
Very early example (picture provided by Armond - Thanks)

Typical/vast majority- Orientated as it would appear on the bottom of the hood when open. Can't say the glob of resin is typical so please don't copy that detail