Great Fifty Puzzle

Craig Biscuit Co., Fort Wayne, Indiana, unknown age.
(cardboard box 4" by 4" by 1/2" and 16 wood pieces)

Make a magic square where all rows, columns, and diagonals add to 50. This is in a theme similar to many versions of the Fifteen puzzle that include a 16th square so that one can make a magic square based on summing to 34.

Further Reading
Wikipedia Magic Square Page, from:
Wolfram Magic Square Page, from: