An 18th-century book is described that will be the first item in an archive of examples for different conservation treatments. Each sheet of every section has been treated according to a different method that is standard in conservation workshops. The methods used include washing; washing in alkalinized water; deacidification with Ca(OH) 2</sub>; deacidification with Mg(HCO 3</sub>) 2</sub>; and aqueous light-bleaching under ultraviolet (UV) filtering glass, with Mg(HCO 3</sub>) 2</sub>, and under UV filtering glass. First results, mainly color changes, are reported. One set of the treated sheets will be preserved at 20±1°C and 50±5% relative humidity and the other at ca. 18±20°C and 60±30% relative humidity. Both will be inspected at repeated intervals.