Hi, Not sure about this one. I twas thought to have been found by my father in Libyan desert area (during army exercises) late 1950's or more likely in early 1960's when we were stationed in Malta. It Seems to me that this is London 1940 9 carat. I would be interested to know who B&N are? Also to confirm that the year is correct. I discovered a long time ago that the ring was engraved by hand to read "Fritz". This has now worn so only the F and part of another letter are visible as my father wore the ring for a long time (not on his wedding finger). However, It also seems that the word Fritz was scratched on to the ring after another word was removed as it is the only area of the ring that seems to have seen some activity such as scraping.