Martin Yale Premier 1400 Instant Letter Folder Folds 1-3 Sheets  Original Box  & Manual. Condition is Pre Owned used .Martin Yale Premier 1400 Instant Letter Folder. This compact machine is designed to quickly fold letters, invoices, and documents for mailing.The unit can fold 1–3 sheets at a time and is perfect for home offices, small businesses, or anyone sending regular mailings and works. Please look closely at the pictures for condition. Thanks for looking.