Documentary images — company attribution uncertain

The flag is red with a central white lozenge containing black “ABG”. Rosanoski’s pre-war Carly chart adds dots after “B” and “G” and labels the firm “Actien-Gesellsch. Bornh. Granitwerke”, with “Actiengesellschaft Bornholm” under the ports. He therefore questions whether the attribution should concern Bornholdt or granite shipping from the Danish island Bornholm. The chart’s German company name and routes through Copenhagen and German ports do not resolve the identity.

Bornholdt versus Bornholm attribution remains unresolved.

This does not establish that Bornholdt and Bornholm are the same company or resolve legal domicile. The archive itself questions the spelling and attribution. The quarrying PDF retrieval failed; no nationality or image match is asserted.