I have brought a CGS slabbed 1937 proof crown from Lockdales using the CGS photos years ago. When I have got it, there's a carbon spot by the King's nose which is not visible in the CGS photo. The thought crossed my mind alright.
I hope it didn't damage your colon.
Regarding the 1890 - interesting, thanks for sharing. Like Rob and perhaps many others, I wouldn't go out of my way to collect such a specimen - but if I had one just randomly, I would probably feel an extra bit pleased about it.
Mozilla has cocked up. All extensions are disabled (including virus protection).
A temporary fix is to open Firefox, go to options, then privacy & security and tick "Allow Firefox to install and run studies".
More details here.