Made in Portugal     Circa  1800's      Set of 4 antique wall tiles from Portugal.   They are hand painted with a floral motif using shades of blue, brown and yellow on off white.  These came from Norman Karlson's vast collection.   He is the author of books on American art tiles but collected and sold antique tiles from all over the world until his retirement.   Each tile measures 5 1/2" sq x 3/8" thick.   Good condition considering their age; has chips and wear.    When installing, be mindful of the light source that is reflected in the corners.   Notice how half of the flower is lighter than the other half.   Mr. Karlson made a point to bring our attention to that small detail!