Légende

Historical lesson board on the industrial production of nitric acid from atmospheric nitrogen. It explains the chemical process and the technical equipment involved, authentic, digitally restored reproduction from a 19th century original, exact date of presentation unknown, historical

Date

17 févr. 2026

Crédit

Photo12/imageBROKER/Sunny Celeste

Notre référence

BRK26B55_489

Model release

Non

Property release

Non

Licence

Libre de droits

Format disponible

470.1Mo (25.2Mo) / 124.8cm x 94.4cm / 14736 x 11151 (300dpi)

Mots clés

deserted black Sign date education school history drawing technology industry accurate picture classic illustration depiction information produce digital antiquity historic educational institution Production information panel Character technical industrial chemical restored contemporary drawn information sign explain display board authentic woodcut restoration field of education former vintage sketch printing method acid replication 19th century Historic illustration Training material Wood engraving colouring Chart Industrial production nitric no one signpost precise image classical representation manufacture ancient times historical information board real xylograph reconstruction educational system nineteenth century Historical illustration No People exact make realistic woodprint reproduction 1900s nobody notice board genuine replica uninhabited signboard copy empty signs dates schools drawings technologies industries pictures illustrations depictions producing digitally Altertum educational institutions productions information panels Characters tech information signs explaining display boards woodcuts restorations fields of education formerly printing methods acids 19th-century Historic illustrations images classically manufacturing historically info panel info panels reconstructions Historical illustrations making information boards replicas info signs notice boards on black depicting produces historical image history image history images info sign sign explains restoration work vintage-styled representing manufactures info board makes