Answer:

INV

Answer	Crossword Clue
INV	Itemized bill: Abbr.
INV	Shipper's bill (abbr.)
INV	Mdse. on hand

INV	Storekeeper's stock: Abbr.
INV	Stmt. detail
INV	Bill: Abbr.
INV	Bus. "pay me" notice
INV	Shipper's bill, briefly
INV	Freelancer's email attachment: Abbr.
INV	List sent to a buyer: Abbr.
INV	Shipping sheet: Abbr.

INV	Buyer's list of goods: Abbr.
INV	List of goods shipped: Abbr.
INV	Business paper: Abbr.
INV	List of goods: Abbr.
INV	Bid to a party: Abbr
INV	Patent subject: Abbr.
INV	Edison, e.g.: Abbr.
INV	Stock or C.D.: Abbr.

INV	Bookkeeper's mailing: Abbr.
INV	Accts. payable receipt
INV	Stock or bond: Abbr.
INV	Storekeeper's stock (Abbr.)
INV	Shipper's bill: Abbr.
INV	Small bill?