This form from the office of the Board of Revision of Taxes is found in the Civil War Pension File of my paternal third great-grandfather. After his death, my third great-grandmother filed to continue getting the pension he was receiving for the time he spent as a Union soldier in the Civil War.
This was filed on August 31, 1904 in Philadelphia, Pennsylvania. At that time my third great-grandmother owned four houses in the city of Philadelphia. They are all listed here, as well as how much they were worth.
The house and lot that had the highest value was her own home at 1416 South 15th Street. It was worth $3,200. Next was the house and lot at 1445 South 16th Street at $2,100, 1532 South 8th Street at $1,800, and 813 Tasker Street at $1,200. The total worth of all the houses was $8,300, which would be about $250,000 today.