Hey there. Since I lack any catalogue and some Internet-pages say that and some say something else, it's hard to identify and find out the CV.
I'm hoping you can tell me what these two Stamps are!
My guess - comparing to some webpage;
"1870
Sc134 SG136
1c ultramarine" says 600£ for these..
Which I find hard to believe! So help me out!

Thanks!