I have an SG part 1 and a Scott World Classic Specialised - if anyone needs a cross reference for British Empire please let me know

Perhaps a thread for these requests might be the go.
Having both helps with
ebay searches and also gives me some idea of what some of my non British Empire material might be worth.
An interesting story: when Robson Lowe issued volume 2 (Africa) of his encyclopaedias in 1949, there is a note in the acknowledgements stating that all references to Scott numbers (that had been used in volume 1 without permission) were going to be omitted from that and all subsequent volumes.
Lowe must have had permission from SG to use their numbers as a cross reference with his own Regent catalogue numbers, as both were used right through the series of 6 volumes.