Loss list in London

[Eduardo]

Hi,

I will be in London next week and would like to know if someone can
help me to figure out where can I find German losses in London . I know that the P.R.O. has but where is it?
Can I get some copies of it in A-4 paper format?
How much is it?
Which subway station?
Do I have to make an appointment?
It´s open for the public?
Please give me a light of what can I do.

Thanks in advance;
Eduardo.