I would have expected it to be New Street by c1910, but I think I can see "Moor" below the "R" in Birmingham. Is that what you meant to type instead of Broad ? So maybe it was advertising Moor Strret Station. But then I thought the trains only went to Marlybone from Moor Street (I like Marlybone Station - sometimes used that to Brum, nice journey, but takes longer than from Euston). I also think it might say "40 trains daily" to the right of " Birmingham", but surely that can't be right, can it ?