Hello Mike,
Thanks for sharing the photo with us. Do you have any other photos of your Dad from that era? I understand he was involved with the development of the Comp model at the end of the 40's, along with the clandestine scheme to prepare three bikes for the 1950 ISDT (while the factory was under the control?? of the official receiver!!!). I have one of those bikes (Ted Breffit's machine) and would dearly love to be able to fill in some of the gaps in it's history.
Regards,
Eddie.