Brass cornered partial set by Gemrig of Phil. Set has keyhole. The set is two tiered with an inside label of Codman & Shurtleff 13 fremont. They were at this address from 1858 -1871. The instruments are marked Gemrig. Codman & Shurtleff acted as resellers for other makers including Gemrig. The box is not marked on the brass plate but the buyer included a history of the set. It states the set was purchased by a Dr. Tidwell in 1860. Circa 1860.