Hi Everyone, We are not done yet, I have worked out that there were the two styles of catcher attachment. There is no adapter plate, the catcher opening is model specific. The type with two slots in the base plate as in the first images and then the second type is lowered down over two tabs that are moulded onto the base plate.
The two catchers that Max has shown fit the F62 model that is in the picture, if you look closely you can see a vertical tab either side of the chute that would locate the catcher.