Measure and sift flour and salt into a mixing bowl. Stir in baking powder, baking soda and sugar.
Add shortening and using the tips of a fork, or hands, rub them together till they look like fine crumbs.
Add milk. Then add the cream of tartar and grated coconut.
Mix to a dough which is just stiff enough to roll out.
Bring the mixture to a ball.
Roll out 1/2 inch thick and cut into small rounds with a cutter. (Or you can use a glass like this).
Note: Dip the glass in a little flour before you cut the circles.
Place the cut biscuit circles on a greased tray.
Brush the top with milk and bake in a very hot oven for about 10 – 15 minutes.
Serve warm or cold.