Anonymous non-LDS visitor describes seeing mummies, papyri.
"The Mormon Population of Montrose and Nauvoo," Boston Evening Transcript 15 (January 20, 1844): 2
In regard to his religion, he believed it, and didn't care whether any one else did or not, and if we desired to know what his faith was, we could ascertain by buying the book of Mormon, which I did for 10s. He showed us four mummies from which he had unfolded the ceremonies, and said that one was king so and so, and another his sister, &c., &c. He also showed us some hieroglyphics, which he said formed the record and signature of Joseph when in captivity!