Lettre du 3 mars 1726 (de): Only a month later, Bockleth reported to Bessel that he had achieved another price reduction and that the collection was now available for 500 guilders. The only problem concerned the currency, as the widow insisted on being paid in Franconian guilders instead of Rhenish guilders as were offered to her (Library of Göttweig Abbey Cod. 691 156r–v; voir Mayer 2020).