Enact a new rule, “Second-Hand Goods”:-

Each Seller owns zero or more Goods, tracked as a text list in the GNDT. A Good has a name (a text string) and an ID (three numbers separated by full stops, known as the Good’s Category, Subcategory and Significance), and is written in the GNDT as “Name (#.#.#)”. By default, a Seller has no Goods.

The wiki page Second-hand goods lists the possible Categories and Subcategories of Goods, and their numbers.

If a Seller has no Goods, they may - as a daily action - Search their Attic by announcing a Category, and rolling DICE50 and DICE99, all in the same GNDT comment: if the chosen Category has a Subcategory corresponding to the first die roll, then the Seller gains a Good with a name of their own choosing and an ID equal to “A/B/C”, where A is the number of the chosen Category, B is the result of the first die roll and C is the result of the second die roll.

If the wiki page “Second-hand goods” has changed since its creation, revert it to its original version.