There were 2 pennies issues from the United States Mint in 1923. 1 was minted in Philadelphia, and the other in San Francisco. The one from San Francisco has an S mint mark under the date. The one from Philadelphia has no mint mark at all. So the one you have uploaded a photo of is was minted in Philadelphia. These coins are worth between .75 cents and $450, but the condition of the coin and the color of the coin are what make them valuable in general. Will post more in a second. Thanks for sharing!
