[CR]Motobecane Grand Jubile: Nervex or Prugnat?

Greetings,

In most every reference I've encountered describing the Motobecane Grand Jubile, the lugs are invariably described as Nervex.

Since I own both a 1971 Raleigh International and an early 1970's Gran Jubile, I can state that the lug sets used on these two frames are not identical.

In fact, the Motobecane lugs look most similar to the Prugnat 56VAC show here:

http://www.veloworks.com/lug_reference/prugnat_gallery/pages/PrugnatType'56VAC'001.html

While the International lugs look like the Nervex Ref 49 show here:

http://www.veloworks.com/lug_reference/nervex_gallery/pages/Nervex'Ref.49'001.html

Can others confirm or deny my observations? Obviously both lug sets are very similar to each other.

regards,

Jack Fortune
Eugene, Oregon USA