Arago: Moving & Sorting Equipment

Moving & Sorting Equipment

Mail tray


Mail processing plants used four-sided plastic letter trays, such as this, in the 1970s, 80s and 90s for both manual and mechanized letter mail sortation. The tray is made of solid, crack- and shatter-resistant plastic and has red directional arrows painted on either long side with raised "1/4" and "1/2" red markers on its floor. Handholds at either end, imprinted in the mold with "Property of U. S. Post Office Department," facilitate manual handling. One side of this tray is stamped in black ink “DI Corp. / Anniston, Alabama / 1980 May / USPS Contract No. 104230-80-V-0660 / USPS Item No. 1254 / Material: PPO.” The tray is 26 inches long, 12-5/8 inches wide, 4 inches deep and weighs 4 pounds. Its capacity is 20 pounds or the equivalent of 2 feet of letter mail.

The plastic tray is well suited for mail preparation, mail transport and mail staging because of its large capacity, deep sidewalls, and its ability to remain stable and stackable when full. Letter mail is unbanded, faced, and placed vertically — with the stamp away from the handler in the trays. Full trays are moved to the LSM (Letter Sorting Machine) or manual distribution areas. Used primarily in the processing plant, such trays were also loaned to mailers for mail preparation.

1970s - 1990s
literal: PROPERTY OF U.S. POST OFFICE DEPT. / PROPERTY OF U.S. POST ......OFFICE DEPARTMENT stamped in black ink: EDI Corp. / Anniston, Alabama / 1980 May / USPS Contract No. 104230-80-V-0660 / USPS Item No. 1254 / Material: PPO
12 x 26 x 4.12 in (30.48 x 66.04 x 10.478 cm)
Museum ID:

Additional Records
  • U.S. Naval Station Mails pouch
  • Vietnam-era experimental mailbag
  • Church Street Post Office mail sack
  • Church Street Post Office mail sack
  • First helicopter mail sack
  • Mail pouch from first airmail flight over the North Pole
  • Mail sack
  • Mail sack
  • Railway Post Office mail sack label
  • Mail tray
  • Managed mail tray and sleeve
  • Transorma mail sorting machine sign

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