The picture depicts a Physician in
the 16th Century - the thought of seeing someone like this would guarantee that a child would eat an apple a day!
Poem - An apple a day keeps the Doctor away
An apple a day keeps the doctor away
Apple in the morning - Doctor's warning
Roast apple at night - starves the doctor outright
Eat an apple going to bed - knock the doctor on the head
Three each day, seven days a week - ruddy apple, ruddy cheek
http://www.rhymes.org.uk/an_apple_a_day.htm