Yes, it is appositive. There is a similar question in OG, in which "each" also acts as an appositive expression. See below. 122. Chinese, the most ancient of living writing systems, consists of tens of thousands of ideographic characters, each character a miniature calligraphic composition inside its own square frame. (A) each character a miniature calligraphic composition inside its (B) all the characters a miniature calligraphic composition inside their (C) all the characters a miniature calligraphic composition inside its (D) every character a miniature calligraphic composition inside their(A) (E) each character a miniature calligraphic composition inside their |