1676. Birthes. Nathanaell, the son of Ezra & Joana Morse, born the 3rd of the 8't. [Note: In old-styles dates, the eighth month is October. More info may be found here.]
It is interesting to note that most silversmithing surveys found online (e.g., here) list the Nathaniel of Boston as born circa 1685. The age at death that goes with his 1748 death hasn't been located, and the basis for the 1685 estimate is unknown.