Determination of the day of the week for the following month. The item for January is "0"; for February or March, "3"; for December, "12". Day-item: The total, thus reached, must be corrected, by deducting "1" (first adding 7, if the total be "0"), if the date be January or February in a leap year, remembering that every year, divisible by 4, is a Leap Year, excepting only the century-years, in `New Style', when the number of centuries is not so divisible (e.g. 1800). The final result gives the day of the week, "0" meaning Sunday, "1" Monday, and so on. Examples: 17, divided by 4, leaves
Koehler Depressing Carriage £1 coin and 10p coin of the Gibraltar pound have all depicted the gun carriage. A replica of a Koehler gun carriage can be seen at Grand Casemates Square in Gibraltar's city centre, while in the Great Siege Tunnels, originally dug out during the siege itself, a reconstruction can be seen of how the depressing carriage would have been used. Koehler Depressing Carriage The Koehler Depressing Carriage was a novel type of gun carriage invented in 1782 by Lt George Frederick Koehler of the Royal Artillery. It was devised to enable cannons to be fired at a steeply downward-facing angle