First, it's a custom logotype, not a font, as clearly stated on the page from which the image comes from:
http://www.g-type.com/portfolio/rapha.html
Second, if you use the Edit link to move the thread up to the Type ID Board proper, maybe someone will chime in with suggestions about similar fonts.

Thanks. I don't know anything about fonts or logotypes, as you may have gathered - hence why I'm seeking advice from people in the know!

I did it and can't think of anything similar.

Did you! Awesome :-)

I think Damion by Vernon Adams (Google Web Fonts)
looks a bit similar