Jean_LAMESCH_Sliderules_Collection_BOX

1758_IWA_ALUZINC_211mm

A plastic sliderule dveleoped by Jean Lamesch and made by the German IWA company under the model name IWA 09253. It allows to compute the weight of a roll of galvanized aluminium, made by the Galvalange factory in Dudelange, Luxembourg. Galvalange was founded in 1982, then acquired by Arcelor in 2002,. Finaly aquired by Liberty Steel, which stopped working in 2024. Jean Lamesch wrote a book "Histoire Mondiale de la Galvanisation" in 2003. Link here.