One page, 8 3/16 x 5 3/4 in., on yellow paper.

In full: "Dear Sir - On my arrival here I found the copies of the prospectus of your book wh. I have distributed. Please send me 20 more. I will aid you all I can in the sale of it. As soon as you can get a copy printed send it to me. When will it be ready. Have you sent prospectus to the bookseller here & at Los Angeles Cal. & El Paso, Texas. Very Truly, Jno. S. Mosby."

It is unclear to whom or about which book this note is written. It is unlikely that it was meant for James Joseph Williamson, as his other letters to him are addressed, "Dear Williamson."