Joseph enters agreement to let Martin Harris sell copies of the BOM.
Joseph Smith, Agreement with Martin Harris, 16 January 1830, The Joseph Smith Papers website, accessed January 5, 2023
I hereby agree that Martin Harris shall have an equal privilege with me & my friends of selling the Book of Mormon of the Edition now printing by Egbert B Grandin until enough of them shall be sold to pay for the printing of the same or until such times as the said Grandin shall be paid for the printing the aforesaid Books or copies
Joseph Smith Jr
Manchester January the 16th 1830
Witness Oliver HP Cowdery