Here are some before and after photographs of a chair by famous American furniture designer George Nakashima. This is one of his earliest pieces made in the 1950s for his next-door neighbor in New Hope, Pennsylvania. He pioneered the use of large walnut slabs with “natural” wavy edges for table tops.
This chair was purchased at auction and the new owner wanted to retain as much of the original oil finish as possible. I clarified and amalgamated the blackened finish and applied several new coats of oil finish. I also re-glued the loose leg and back joints using white woodworker glue which is the same glue Nakashima was using at that time.