According to the Standard Catalog of United States Paper Money, the 1899 one dollar silver certificate with serial number K57481719A is a common note and has a value of approximately $15 to $25 in circulated condition. However, the actual value may vary depending on the specific condition of the note and the current market conditions for such collectibles.
It's important to note that the value of old banknotes can fluctuate over time and can be influenced by various factors, including economic conditions, market demand, and the availability of similar notes. Consulting with a reputable coin or currency dealer or referring to up-to-date pricing guides can provide a more accurate assessment of the value of your particular note.