Although no single comprehensive description of the Book of Mormon plates has been preserved, the Prophet Joseph Smith and several people closely associated with him made various statements that include partial descriptions of the plates. When we consider all the sources together, quite a detailed picture emerges of the physical characteristics of the ancient Nephite record.
In first Nephi chapter one verse one of the Book of Mormon, Nephi begins by saying “…therefore I make a record of my proceedings in my days”. The very first verse in the Book of Mormon makes reference to record-keeping. Later on, Nephi makes two sets of records with an important distinction between the two.
I found this list of quotes years ago that includes many statements by very prominent, very intelligent people speaking of items relating to scientific advancement that will never work or never happen. It’s quite humorous, but it says a lot I think about how much we have to learn in the future.