Possible Clues:

• Bulbs kept initially in paper
• The paper is so thin it's enough to make you weep
• That paper is enough to make one weep
• Bond alternative
• What one should know, like, from paper
• That paper is so thin it'd make you weep
• The sort of paper whose content may make us weep!
• Type of thin paper
• With expert knowledge, evidently, family produces fine paper
• Thin, glazed paper