Thank you for submitting your items for appraisal. These appear to be cowhorn powder horns, decorated with hearts and the names of Kersh or Kirsh / Kirsch family members. Powder horns in general are quite common, but the ones in your possession have an elegant folk art decoration and a convincing provenance. It is this provenance that adds value. Powder horns sell within a 30 to 4000 USD range, depending on rarity and quality. I would see a value within the price range listed, with a very good potential to surpass the high estimate.