Curious thoughts always arised when considering a circa date for the Honus Wagner (Henry Reccius Card). Please refer to this link :
http://thelibrary.org/blogs/article.cfm?aid=1065
Right hand side of the Reccius Card reads: ~ HOME TELEPHONE 5807 ~
(XXXX is a four digit telephone number). As per research done, 4 digit telephone numbers were not used until 1905.