BANKERS BOX Corrugated Cardboard Storage Box/Archive Box for General Use (W x H x D) 32 x 25 x 39 cm (Pack of 10) - brown : Amazon.co.uk: Stationery & Office Supplies
W E Roberts (Corrugated) Ltd A4 Cardboard Archive Filing Storage Boxes - 15" x 12" x 9"/390mm (L) x 304mm (W) x 238mm (H) (Pack of 10) : Amazon.co.uk: Stationery & Office
NorthClip - Home - Catalog - Archive boxes - Acid-free archive box for medium-long storage of archive documents