Green’s Dictionary of Slang

trotting-cases n.

shoes.

1859, 1860		Hotten Dict. of Modern Sl. etc.
1864, 1867, 1870		Hotten Sl. Dict.
1884		Tavistock Gaz. 27 June 5/2: Thoise indispensable articles which the Artful Dodger [...] described as ‘trotting cases’.