I don't see an exact match to those lugs in Norm's many catalog scans http://homepage.ntlworld.com/nkilgariff/, but I'm sure you'll find it if you search longer and harder than me. Seems that the ornate lugs were generally earlier than the later (like late '60s and '70s) models that were trying for a more "Italian" look and generally used Prugnat lugs. It's not a very strong clue, but the 1969 I own that is suspected to be from the "shop" rather than the "factory" uses a similar font number stamp for its serial number (though it's on the BB shell) and my factory-built (mid-70s) Super Mistral has a very different, and smaller, number stamp. One clue to it being re-sprayed: the headbadge is screwed on with slotted brass screws rather than rivets.