DISRAELI DOCUMENTS
My random translations of the photo captions, clockwise from top left are:
The image labelled 'Dura-Ace aero AX' might be better described as a 'Dura-Ace AX'. I think that the image labelled 'BMX' does not show the similar, classic, Shimano SX BMX derailleur, but a more basic model that I believe was often fitted on more normal kids bikes.
I think that the correct labels might be:
Browse associated derailleurs.