If you have anything of interest to sell, an auction is always worth considering. Your property will be seen by a wide audience, which can lead to it reaching a much higher price than selling through other sources. This is particularly true in a specialist sale, where international collectors may bid.
However, you will need to balance the possibility of your property reaching a higher value with the amount of money you will need to pay on fees and commission - this could be up to 20% of the final hammer price.