My sister-in-law has asked me to find out some history about this chair. I am attaching a photo of the chair and a photo of the sketch she made of the circle & words on the bottom of the chair. It is oak, standard dining room chair size, fairly heavy weight, and has the following information on the bottom: "John A. Dunn Co., Minnesota Transfer, Minnesota, Established 1839, Incorporated 1907, and No. ? 1092". The question mark refers to a mark like a backwards "S". Any information we can get will be greatly appreciated. Thanks.