Josiah Stowell Statements as a Witness
Stowell was a houseguest at the Smith home at the time that Joseph obtained the golden plates in September of 1827. Historians Michael MacKay and Gerrit Dirkmaat summarize the experience of Josiah Stowell with the plates in this way:

Stowell, who claimed that he was the “first person that took the Plates out of [Joseph Smith’s] hands the morning [he] brought them in,” would have been the first person other than Joseph to feel and heft the plates. As he took the plates from Joseph, he likely felt the contour of the plates, but it was what he saw that made his experience with the plates unique. In the summer of 1830, after Joseph Smith was charged with disorderly conduct, Stowell was called by the defense and sworn in as a witness. He testified under oath that he saw the plates the day Joseph first brought them home. As Joseph passed them through the window, Stowell caught a glimpse of the plates as a portion of the linen was pulled back. Stowell gave the court the dimensions of the plates and explained that they consisted of gold leaves with characters written on each sheet. The printed transcript of the trial read: “witness saw a corner of it; it resembled a stone of a greenish caste.” Because Stowell also mentioned in his statement that the record was made of plates of gold, it is difficult to know what he meant by this description. He may have seen the band that sealed two-thirds of the plates together, which may have been made of copper that had oxidized over the years and turned green. Alternatively, he may have seen the breastplate, which could have also been made of copper and appeared green from oxidation. In any case, the point Stowell made to the court was that the plates were real and that he had seen and felt them.

Michael Hubbard MacKay and Gerrit J. Dirkmaat, From Darkness unto Light (Provo, UT: Religious Studies Center; Salt Lake City: Deseret Book, 2015), 13.