Kirk, I believe the narrow rims are the same for either. The wide rims on a narrow frame are offset so the deeper side is facing outward. The wide frame wide rims are offset so that the deeper side faces inward. UNDER EDIT: After looking at more photos that I have it might even be that the wide rims for a wide frame are more centered with less pronounced offset.
^ ^ Narrow Frame ^ ^
^ ^ Wide Frame ^ ^
^ ^ Narrow Frame ^ ^
^ ^ Wide Frame ^ ^