Cart Continue Shopping “Eric Orr. Prime Matter Works. Riva Yards Gallery, Scottsdale, Arizona, October 11 – November 10, [1991]” has been added to your cart. Product Price Quantity Total × Eric Orr. Prime Matter Works. Riva Yards Gallery, Scottsdale, Arizona, October 11 – November 10, [1991] $35.00 1 $35.00 Coupon: Cart Totals Subtotal $35.00 Shipping Flat Rate domestic: $4.99 Total $39.99 Proceed to Checkout