Thanks Brian
why I added the 1850 date is that it is possible to acquire arms by application to one of the Heralds (+ payment of fees etc) - my textbook listing all arms covers upto the 1850's so later purchases may be possible (and the Diamond King could certainly afford them) - as post revestment the Lord of Man was also the British Sovereign I believe it was possible to acquire arms this way (the only older examples I know were the Christians via connection to Cumbria and one of the Quayle families (Mark Hildesley) who purchased them).