These are made of different articles but always in the same manner.
Cold biscuit sliced thin and buttered and a very thin slice of boiled ham, tongue. or beef between each two slices of biscuit is best.
Home made bread cuts better for sandwiches than baker's bread.
The meat in sandwiches is generally spread with mustard, the most delectable are those made with boiled smoked tongue."
From Every Lady's Cook Book 1856