Issued on 17th June 2021 by Chunghwa Post Co., this is a set of four conventional maximum cards of which our scan shows two plus the cardboard cover.  It’s called, altogether, “Maximum Cards of Taiwan Relics Postage Stamps (Issue of 2021)” and also has the explanation that this is the “Pre-cancelled, Chinese Version”.  Since half of all this is in English, we won’t ask why or how this is a “Chinese Version” but it helps to know that Taiwan postal outlets sometimes create maximum cards for customers on the spot — and with varying dates — depending on demand.  Grade: 1