Abstract We present the extension of the Kalmag model. proposed as a candidate for IGRF-13. to the twentieth century. The dataset serving its derivation has been complemented by new measurements coming from satellites. https://www.bekindtopets.com/top-price-Gemplers-4-mil-Disposable-Nitrile-Gloves-Bucket-of-1000-Gloves-p8887-huge-savings/