The port warden shall attend personally all sales of condemned vessels and of damaged materials and goods which are sold at public auction by reason of the damage, for the benefit of the owners or underwriters or for account of whom it may concern.

The auctioneers making such sales shall give due notice thereof to the port warden and shall make such sales under the direction and by order of the warden, for which service he shall receive a commission of one per cent on the gross amount of sales, to be paid by the auctioneer to the warden on demand.

The auctioneers shall make monthly statements to the warden of the county, specifying the total amount of each day’s sales made by them under this chapter, which statement shall be filed in the office of the warden.