Archief van de firma Luchtmans; inv.nr. 648, Printed stocklist of the bookshop, titled "Catalogus librorum, praecipue in Italia, Germania, Gallia, Anglia, Belgio et alibi editorum, qui inveniuntur apud Samuelem et Johannem Luchtmans. Bibliopolas Leidenses, 1774.", Interleaved. With notes on prices and additions, ca. 1820