Thinly-sliced cucumber, onion and apple in a pickle of salt, cayenne, soy, sherry and vinegar. Known from the 'Englishwoman's Domestic Magazine' of the 1840's and repeated by Mrs.B.

Original Receipt in 'The Book of Household Management', 1861, edited by Isabella Beeton (See Mrs.B)

AN EXCELLENT PICKLE.
497. INGREDIENTS: Equal quantities of medium-sized onions, cucumbers, and sauce-apples; 1-½ teaspoonful of salt, ¾ teaspoonful of cayenne, 1 wineglassful of soy, 1 wineglassful of sherry; vinegar.
Mode: Slice sufficient cucumbers, onions, and apples to fill a pint stone jar, taking care to cut the slices very thin; arrange them in alternate layers, shaking in as you proceed salt and cayenne in the above proportion; pour in the soy and wine, and fill up with vinegar. It will be fit for use the day it is made.
Seasonable: in August and September.
(This recipe was forwarded to the editress of this work by a subscriber to the "Englishwoman's Domestic Magazine." Mrs. Beeton, not having tested it, cannot vouch for its excellence; but the contributor spoke very highly in its favour.)