One for the Bull Terrier lovers. From the studio of Thomas Fall 22, Baker Street. The dogs name is written on the back and, from what I can find out, Champion Num Skull was showing 1929 - 1930 ish and was bred by Mrs V Ellis. Happy for any more info. As for the photography studio there is some interesting history at www.photolondon.org.uk/pages/details.asp?pid=2627