This is a set of four cards, issued by Hongkong Post in 2021.  There’s no pre-printed postage (unusual for Hongkong Post), and our scan shows table tennis as just one of the cards; other subjects include bicycling, diving, and windsurfing.  The postcards are unused and still in their original cello wrap.  And why is this set so expensive?  As far as we can tell — and this is accurate up to the time we write this — the cards were never put on general sale, but instead made available as a bonus item redeemable by subscribers who had enough points from the Post Office’s annual subscription programme.   None of that matters to you, of course, but unless things change, there will never be many of these sets available.  Anywhere.  Grade: 1

If you look at this from more than about one foot away, it looks exactly like a hardcover book.  It’s not; it’s a box in book format containing 12 lithograph postcards (see our entry 20308923B).  Measurements of the whole thing as enclosed in its original protective plastic cover:  7″ high x 6″ across x 1-3/4″ deep.  Note that the front logo specifies “Hong Kong Disneyland” and that the spine of the box — not seen in our scan — entitles this “Happiest Place on Earth”.  Now please see the scan for 20308923B.  Grade: 1

To be precise, “13 Royal Fairytales and Postcards,” which we want to assume means at least 13 postcards in this set — but it is in its original Cello-wrap and we have not opened that.  Evidence is in our scan:  on the left, the front of the pack.  On the right, most of the back (showing those cards?) but with original pricing cut off at the bottom so as not to confuse you.  This set is unique to Hong Kong Disneyland, and without free-standing shops here, you needed to go there to get the cards.  Grade: 1