I feel this 2nd brush holder should not be made in old age. The scene on 3rd brushholder is sparser than others. I feel this the later work. Real work of Chang Hsin Skilled in seal engraving and carving calligraphies on bamboo. Contemporary leading scholars praised his works.
Haiyen city is between Shanghai and Hangchow, and by the sea.
I can't find any photographs of his work in published books and magazines. 26mm wide at top. The small characters is a record line made by Chang Hsin. Chang Tin-ji wrote. A famous scholar Chang Tin-ji was a patron of him and his uncle.