The New Zealand Railways Magazine, Volume 13, Issue 9 (December 1, 1938)
Ham Pinwheel Sandwiches
Ham Pinwheel Sandwiches.
One loaf white bread, 2 1/2 ozs. finely chopped ham, mustard, butter.
Cut the bread in thin slices lengthwise of the loaf. Spread with butter, then with the ham and mustard mixed together. Cut off the crusts. Firmly roll up each slice from the end like a Swiss roll. Wrap in waxed paper or damp muslin, and chill. Slice crosswise in quarter inch slices.