United States, 1831 AD., Philadelphia mint, 1 Cent, KM 45.1.

United States, Philadelphia mint, designer: Robert Scot and John Reich, 1831 AD., Coronet Large Cent, sometimes nicknamed "Matron Head 1st Type",
1 Cent (ø 28,6 mm / 10,57 g), copper, 10,89 g. theor. mint weight, mintage 3.359.260 , axes coin alignment ↑↓ (180°), plain edge, holed at 11 of the obv.,
Obv.: Liberty head with braided hair facing left and wearing a tiara with the inscription LIBERTY , the date 1831 is under her bust, 13 stars surround her signifying thirteen colonies.
Rev.: [U]NITED STATES OF AMERICA // ONE / CENT , closed-circle laurel wreath with large round berries, the wreath encircles ONE CENT, surrounded by UNITED STATES OF AMERICA.
KM 45.1 .

Year / Mint Mark / Mintage
1816 2,820,982
1817 3,948,400 13 stars
1817 15 stars
1818 3,167,000
1819 overdate "9" on "8"
1819 large date
1819 2,671,000 small date
1820 overdate "20" on "19"
1820 large date
1820 4,407,550 small date
1821 389,000 rare
1822 2,072,339
1823
1823 overdate "3" on "2"; rare
1823 Restrike; very rare
1824 1,262,000
1824 overdate "4" on "2"
1825 1,461,100
1826 1,517,425
1826 overdate "6" on "5"
1827 2,357,732
1828 2,260,624 closed large date
1828 large date
1829 1,414,500 large letters
1829 medium letters
1830 1,711,500 large letters
1830 medium letters
1831 3.359.260 large letters
1831 medium letters
1832 2,362,000 large letters
1832 medium letters
1833 2,739,000
1834 large "8", small stars, medium letters
1834 "8" and stars large; letters medium
1834 small "8", large stars, medium letters
1834 1,855,100 "8" and stars and reverse letters large
1835 "8" and stars small
1835 head of 1836 type
1835 3,878,400 "8" and stars large
1836 2,111,000 (no matron head)

The United States large cent was a coin with a face value of 1/100 of a United States dollar. Its diameter varied between 27mm and 29mm. The first official mintage of the large cent was in 1793, and its production continued until 1857, when it was officially replaced by the modern-size one-cent coin (commonly called the "penny").
More details on As a response to public criticism of the Classic Head, the Mint assigned Chief Engraver Scot to redesign the cent in 1816. This newest design enlarged the obverse portrait, giving Liberty a much more mature look (leading to the Matron Head reference), and surrounded the portrait with stars along the outer edge of the coin. The "Matron head" design was modified in 1835 to give Liberty a younger look and matron head cents continued to be made until 1839. It was one of two similar designs of the Coronet Head Large Cent, the other with a slightly altered profile, produced from 1839 until the end of the production of large cents in 1857. Facing more negative public reaction, the Coronet cents were redesigned in 1835 by new Chief Engraver Christian Gobrecht. This last major change to the coin updated the obverse by giving Liberty a slimmer, more youthful appearance. Minor tweaks continued through 1843, and the 1843 design prevailed through the end of mintage in 1857.Facing more negative public reaction, the Coronet cents were redesigned in 1835 by new Chief Engraver Christian Gobrecht. This last major change to the coin updated the obverse by giving Liberty a slimmer, more youthful appearance. Minor tweaks continued through 1843, and the 1843 design prevailed through the end of mintage in 1857.
More details on https://en.wikipedia.org/wiki/Matron_Head ; https://en.wikipedia.org/wiki/Large_cent ; https://www.ngccoin.com/coin-explorer/coronet-cents-1816-1839-pscid-15