Simon Jacob was a German mathematician and arithmetic master. He acquired citizenship in Frankfurt am Main, where he was listed as Simon Jacob von Coburg.
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![Ein New and wohlgerundt Rechenbuch, auff den Linien un[d] Ziffern - Auction archive](/assets/image/picture_2613784/63a4c/rtklyremi4gyli87soyok-lsvelagpvoxkwecxjjosvedgdxnxgfviyjv0ttvkn1672606696jpg__fix_112_112.jpeg)
![Simon Jacob. Ein New and wohlgerundt Rechenbuch, auff den Linien un[d] Ziffern](/assets/image/picture_2613784/701a1/rtklyremi4gyli87soyok-lsvelagpvoxkwecxjjosvedgdxnxgfviyjv0ttvkn1672606696jpg__fix_147_180.jpeg "Simon Jacob. Ein New and wohlgerundt Rechenbuch, auff den Linien un[d] Ziffern")
