4 antique composite stone windowboxes

We think these date to the 1960s because we found them when my parents bought the house in 1972 from an elderly lady, Mrs O'Malley. There are additionally 2 more, longer windowboxes (around 50cm long) . . These measure 41 long x21x 17cm tall. I've just finished painting the 4th window box which needed a freshen up. Drainage holes at bottom as you might expect. Lovely either as windowboxes or placed on top of 2 bricks to make a planter. Price quoted is for these 3 boxes. Additional price for 2 larger