1874/1916, mint and used collection on album pages, showing a nice degree of specialisation, also incl. 1916 overprints on France set of eleven values complete signed Brun plus eight return labels. (Image)

1896/1906, specialised mint assortment of apprx. 237 stamps incl. several units, special focus on attractive varieties of overprint (slanted/shifted/double). (Image)