From Team Fortress Wiki
Das Metalmeatencasen was contributed to the Steam Workshop under the name "Heavy Defender".
- Das Metalmeatencasen was added to the game.
August 20, 2013 [Item schema update]
- Changed item type to Cosmetic Armor.
- [Undocumented] Added Das Metalmeatencasen to the Mann Co. Store.
- [Undocumented] Added Strange quality.
- This armor was issued in conjunction with a Stirnpanzer helmet (The Das Naggenvatcher in Team Fortress 2) to German sentries, snipers and machinegunners from 1916 until 1918.