§ 589. Copy of application; inventory and license to be posted; license to be referred to in advertisements. A copy of the application for a license to conduct a sale under this article, including the inventory filed therewith, shall be posted in a conspicuous place in the sales room or place where the inventoried goods, wares or merchandise are to be sold, so that the public may be informed of the facts relating to such goods, wares and merchandise before purchasing them. Any advertisement or announcement published in connection with the sale shall conspicuously show on its face the number of the license, the date of its expiration, and if applicable, the location where the business is to be resumed.