The official name of this set (in Chinese) is: Botanical Postcards.  It’s still sealed in the original cello-wrap, with added price and bar code stickers.  Apparently representing different botanical species from Jiuzhaigou Valley, and– from what we can see — giving scientific names like Taxus chinensis (a species of yew used to produce medicines for cancer treatment^, including Paclitaxel and Taxifolin.  It can also be used in other ways and is protected under Chinese and international law.)  We can’t honestly see how many cards are in the set.  It looks like four.  There is an attribution to China Post.  Grade: 1