Love the tennis graphic too, Carlton. My knowledge of tennis memorabilia is in its infancy, but the look of the flat top racket indicates possibly earlier than 1910.
My interest in tennis items grew recently after finding a similar flat top racket at an estate sale. Knew little of the large amount of early racket styles and variations, and still do, but came across this JTH site which was interesting and has great info and images. You are probably aware of them.
Large PDF full of rackets and memorabilia- scroll to page 58 to get to the non-racket memorabilia.
http://tennisboutique.com/files/pdf/...%202013.v2.pdf
http://tennisboutique.com/tennis-museum-collection