original_query: What are the different types of franks used in franking?
query: What are the different types of franks used in franking?
answer: The different types of franks include postage stamps (adhesive and printed), postage meter impressions, official use "Penalty" franks, Business Reply Mail (BRM), permit imprints, manuscript and facsimile signatures, "soldier's mail" markings, and other forms authorized by postal administrations.