The finish is Kibler tannic acid, iron nitrate, heat, wet sand 320/mineral spirits, thinned Lancaster maple, wet sand 320/mineral spirits, wet sand 400 till happy, boiled linseed oil 6-7 coats sanded or 0000 wool, some burnt umber artist oil paint scrubbed in between coats, more oil. The linseed seems to enhance the amber tones, I'm sure it will darken some yet. Wax.