GSL/L/R/1/161 | Letter from Philippe VANDERMAELEN | 14 Aug 1834 | |
GSL/L/R/1/162 | Letter from Philippe VANDERMAELEN | 19 Oct 1834 | |
GSL/L/R/3/304 | Letter from Philippe VANDERMAELEN | 29 May 1838 | |
GSL/L/R/4/93 | Letter from Philippe VANDERMAELEN | 12 Dec 1838 | |
GSL/L/R/4/183 | Letter from Philippe VANDERMAELEN | [Mar 1839] | |
GSL/L/R/6/80 | Letter from the ETABLISSEMENT GÉOGRAPHIQUE | 1 Sep 1840 | |
GSL/L/R/6/279 | Letter from the ETABLISSEMENT GÉOGRAPHIQUE | [1841] | |
GSL/L/R/7/328 | Letter from Philippe VANDERMAELEN | 21 Oct 1842 | |
GSL/L/R/8/208 | Letter from Philippe VANDERMAELEN | 8 Mar 1844 | |
GSL/L/R/8/217 | Letter from Philippe VANDERMAELEN | 31 Jan 1844 | |