ANSWER: A sample can often help if you feel the online enlarged image is not sufficient for you to confirm your choice, however, it is worth noting that neither online swatches nor actual samples are oiled and will differ significantly once several coats of oil is applied, particularly in the case of Iroko. You should also consider that it is highly unlikely that both your sample and your hardwood order will come from the same consignment. Wood from different parts of the tree can differ widely in character, more so hardwoods from different part of the forest or even different forests for that matter.