Check washing process of washing a check is relatively simple and can be accomplished with basic solvents. The actual solvent is largely irrelevant — more importantly, the polarity of the solvent must match the polarity of the dye in the ink. For example, an ink that is mostly made of a polar dye would require a polar solvent (e.g. acetone or isopropanol). Both nail polish remover (acetone) and rubbing alcohol (isopropanol) are able to pull most common inks away from paper in minutes. Similarly, a non-polar dye would require a non-polar solvent (e.g. toluene or a similar hydrocarbon). Check washing Check washing
Polish Air Forces in France and Great Britain of the Polish Air Force. The squadron number "305" is added. 306 Squadron's badge uses an old Polish design previously used for 141 and 142 Escadrilles. The main differences are: 141 & 142 had an inverted hexagon, 306 uses a diamond shape. Also in the 306 badge there is a bear and tree, a symbol for Warwickshire, UK (and Madrid). 307 Squadron's badge uses a crescent moon, an aircraft and an Eagle Owl derived from the heroic exploits of The Lwów Eaglets (Polish: Orlęta Lwowskie) young fighters who died defending the city of Lwow in Galicia, Poland from invading Ukrainian