Very good set of Luxembourg starting with old documents of the 18th century (French Revolution period) and postal marks of the 19th century. We have the first issues with 2 original drawings of the silbergroschen (ex Burrus collection) and a study on the coats of arms (imperforate, pierced in lines, cancellations) and various tests of colors (the complete series n° 47 to 58 and the 1c mainly).