We understand that Ty Ddewi (or Tyddewi) is Welsh for “David’s House”, but what we don’t understand is why roughly 50% of websites and 50% of postcards from there either do or don’t place an apostrophe in “David’s” as this card does.  It doesn’t matter to us; we’re just curious which is really correct.  The card was mailed in 1974, with a 5-1/2p stamp, airmail sticker, and a small tear at the bottom edge.  Grade: 3