Cart Continue Shopping “E.F. Higgins III. Robert Kennedy. Doo-Da Postage Works Commemorative, 1979” has been added to your cart. Product Price Quantity Total × E.F. Higgins III. Robert Kennedy. Doo-Da Postage Works Commemorative, 1979 $80.00 1 $80.00 Coupon: Cart Totals Subtotal $80.00 Shipping Flat Rate domestic: $4.99 Total $84.99 Proceed to Checkout