'75 Tradewind-Land Yacht-Excella
I think maybe the earlier International and Excella were more deluxe in some way. In fact, in my old NADA book (only goes back to '76) it says to add $ for the International pkg.
Yes, the now gone Airstream.com weights and lengths had 1975 TW listed but nothing for the additional Land Yacht or Excella designations. There probably was no impact on the weights.
sue and ike
'75 Tradewind - 25'
2004 GMC Yukon XL 2500
Michigan - "middle of the mitt"