Isogonic Chart Kingdom of Yugoslavia and 50 similar items

Isogonic Chart Kingdom of Yugoslavia Original 1927 Mokrovic 1927 Isogonic Chart of the Kingdom of Serbs, Croats, and Slovenes *** This chart is the second known isogon chart of our area after Kugler?s chart from 1922. While the latter shows a tiny area between ?ur?evac, Bubnjarc, and Bjelovar, this is the first complete SHS map. Isogons are imaginary lines that connect places on the earth?s surface with the same magnetic declination. Magnetic declination (lat. Declinatio) is the angle between the magnetic and geographic meridians. The curves connecting these places with the same magnetic declination are called isogones, while those with 0 are agones. Declinations can be positive (east) and negative (west). Regular seasonal changes are called regular, while extraordinary ones are called geomagnetic storms. Extremely rare, no copy is present in state institutions. Cartographer Josip Mokrovi?, Croatian geophysicist (Kraj Gornji, Zapr?i?i June 12, 1898 ? Zagreb, June 13, 1983). Graduated from the Faculty of Philosophy in Zagreb from the physics group of subjects (1934), where he got a PhD (1952). He worked at the Geophysical Institute of the Faculty of Science and Mathematics in Zagreb (1919?68) as a lecturer for geophysics students. He researched seismic activity, hodochrones and earthquake forecasting, underground rumblings, gravity, and atmospheric electricity. year In 1927, he produced the first geomagnetic charts of the then Kingdom of SHS. Since 1952, he worked as a scientific associate of JAZU. *** Year: 1927 Place of publishing: Kingdom of SHS Cartographer: Josip Mokrovi? *** Size: 55 x 47 cm Condition: Folded as issued, few stains on the cartouche, minor tears on the lower edge (up to 1mm), excellent condition overall. *** For details of the item?s condition please refer to the images. If you have any questions, don?t hesitate to contact us! Shipping Shipping method: All items are shipped via Express Mail Service (EMS) or private couriers such as DHL and UPS. You will receive a tracking number with whom you can trace the item's location at any given time. All items will be packed safely and properly to avoid any damage during their voyage. Combined Shipping: We offer free shipping for books. For other items, it is possible to combine purchases. You just need to make a request for a separate invoice. Please note: If you have ordered more than one item from a different category, please wait for the combined shipping invoice. Shipping time: We send all the items within 24h of payment being received on a working day. In case we are on holiday the item will be shipped the first next working day. The estimated delivery time is 3-7 working days. Customs office: You may be charged by the customs office in your country. There are no hidden expenses like sales or export taxes unless specified in the item?s description. Please familiarize yourself with the import laws of your country before purchasing in case you are not entirely sure if an item is subject to customs taxes. For some items, an export license is needed and additional fees and time to get the export permit will be clearly stated in the item description. Some items may end up at customs inspections in Serbia so we will kindly ask you to be patient while such inspections take place because they can cause a delay in the delivery time. Payment Payments will be processed via: Paypal Managed Payments Credit and debit cards will be processed via the mentioned processors as well. We kindly ask our buyers to pay within three working days of the order. After that, the buyers will be sent a reminder. If the payment is not received even after that, a case will be opened. Returns and refunds In case you would like to return/exchange the item for any reason you are free to do so. We ask all our buyers to contact us prior to sending an item back. The moment the item arrives back the buyer will be entitled to a refund. Exchange for another item from the store is also an option. It is possible to return an item within 30 days from the date of arrival. Feel free to contact us if you have any additional questions, we will be happy to answer them!