User summary with online reference:
After Nova Game Designs closed its doors, their old inventory was picked up by Chessex, which continued to distribute the game under its own label and different product codes.
Chessex added labels to both the front and back of the Deluxe Edition boxes. The new label on the front features the Chessex logo, and new product code 'CHX 60002'. The new label on the back of the box says 'Ace of Aces: Rotary' and features the new product code, and the Chessex logo. It also says "Available from Chessex Manufacturing" and lists their Berkeley CA address.
At least some of the game sets sold by Chessex were 'spare parts' sets, made up of components from both the regular Nova editions, and the 'Richthofen ' edition published by Emithill Ltd in the UK.
Information about these 'spare parts' sets and the passing of old Nova inventory to Chessex can be found in the article 'Ace of Aces Collector's Guide' by Joseph J. Scoleri III. An online version of the article can be found here: