Then from the communication trenches came dixies or iron pots, filled with steaming tea, which had two wooden stakes through their handles, and were carried by two men.
1928, (w), Memoirs of a Fox-Hunting Man, Penguin 2013, p. 261:
And what those ‘dixies’ of hot tea signified no one knows who wasn't there to wait for them.
1929, (w), The Middle Parts of Fortune, Vintage 2014, p. 39:
Army rum is potent stuff, especially when the supplies of tea and water have run out, and one drinks it neat out of a dixie.