Following the inventory catalog of 'Plastics' from the porcelain manufactory Frankenthal (1755-1800) at the Reiss-Engelhorn Museums Mannheim, the 'Archivalien' presents the first comprehensive documentation of the manufactory through original documents. For this purpose, 5,352 pages of administrative records were reviewed at the State Archive in Speyer, from which a selection was made. Unique insights are provided into the ministerial administration of the manufactory, including wage structures, pensions, duties, and the existential struggles of the 'porcelain workers,' as well as instances of 'bullying' and 'rating' of their directors. The quotes illustrate the backdrop of princely table luxury and bourgeois tableware. In contrast to the Palatine idiom, the refined style of court officials and the even more artfully crafted announcements of Elector Carl Theodor are particularly striking. For the first time, the early work of the manufactory is documented with the complete publication of an advertising campaign for the French market in the 'Journal de Commerce' from 1760. A new discovery is the inventory of the court confectionery of Mannheim Palace from 1763, which includes porcelain figures for the electoral dessert tables. The price list from 1777 and the lottery draw list for porcelain from 1773 provide evidence of the total production of the manufactory, especially the services with a wide variety of décors and prices. The third volume of this comprehensive work will be dedicated to Frankenthal porcelain tableware.