[Letter from Braunschweig to Iwan Heilbut]
http://lod.ehri-project-test.eu/instantiations/il-002820-9932929395004146-990004842580304146-eng-9932929395004146_eng an entity of type: Instantiation
[Letter from Braunschweig to Iwan Heilbut]
[Letter from Braunschweig to Iwan Heilbut]