Your stamp was one of the workhorses of the era with literally hundreds of millions produced over many years. Due to the long production run, there were a number of running changes made to the stamp perforations over time and these are now assigned different catalog numbers. The overwhelming majority of stamp with this design are worth only pennies; but collector sometimes enjoy hunting for the less common varieties. You can learn more about your stamp here http://stampsmarter.com/1847usa/192...ntifier.html
Your stamp is one of the most common varieties.