Hello, thanks for your question, B Matson. The stone on the main house to the right is from the early 20th C, but the addition on the left hand side of this photo is new. There are several active quarries in the area near this house in the suburbs of Philadelphia that still quarry and sell the same stone that was used over 100 years ago. The mason that did this work was excellent. I do not remember their name, but the contractor, D. F. Sheridan would be able to share that with you.
Studio 511