Possibly it is inadvisable to include a sample. Then a picture of
the article accomplishes the purpose. A grocer who writes his
customers whenever he has some new brand of food product, always
includes in his letter a post card with a full tinted picture of the
article. For instance, with a new brand of olives he encloses a
picture of the bottled olives, tinted to exactly represent the
actual bottle and its contents, and underneath he prints the terse
statement 'Delicious, Tempting, Nutricious.' If his letter has not
persuaded the housewife to try a bottle of the olives, the picture
on the enclosure is apt to create the desire in her mind and lead to
a purchase.
