A similar dish is mentioned as being served in the White House in the last century. While it does not measure up to the standards one would expect for a foreign dignitary or visiting head of state, this pate is great as a canape or spread for grilled sandwiches.

salt and pepper to taste crackers or toast points chopped walnuts sliced artichoke hearts

Grind the ham in a meat grinder or chop it very finely in a food processor using on off pulses. Mis the ham with the mayonnaise, mustard, horseradish, and sherry, and add salt and pepper to taste. Serve thepate on crackers or toast points and garnish with the walnuts and artichokes, if desired.