SE in slang uses
a white greatcoat or overcoat.
|‘The Mill’ British Minstrelsy 108: I say, who’s that in the swell tilbury and the lily benjamin?|
|‘The Mill’ Museum of Mirth 45/1: [as 1827].|
|Mysteries of London III 85/1: A Stranger—looked like a mushroom-faker. Lily benjamin .|
|, ,||Sl. Dict.|
a low-crowned white hat, esp. as worn by a coachman.
|Sporting Mag. Mar. 280/1: Say nothing; leave all to me: you shall slip on my lily shallow and upper toggery.|
|Real Life in London I 102: A green coat, white waistcoat, buckskin breeches, and boots, over which a pair of leggings appeared, which extended below the calf of the leg and half up the thigh, surmounted with a Lily Shallow.|
|‘Larry Cafooslem’ in Laughing Songster 159: And with a lily shallow, / I sported a tidy tile.|
a white hat.
|‘Knowing Bill’ in Rake’s Budget in Spedding & Watt (eds) Bawdy Songbooks (2011) III 87: On Sundays too, my rummy lads, / I comes it strong and flash; / Vith my lily tile and Benjamin.|
(UK Und.) a silver watch.
|New and Improved Flash Dict.|