A flour mill is considering buying a new jumbo sifter, which would have an installed cost of $80,000. The new one
would replace the existing sifter that was purchased 3 years ago at an installed cost of $60,000. If the company
moves forward with the replacement, it could sell the old sifter for $19,000. Purchasing the new sifter would result
in the company's current assets increasing by $10,000 and current liabilities increasing by $8,000.
The company uses the 5-year MACRS table for depreciation and is taxed at 21%.

b) What is the current book value of the old sifter?