A quick scan with any search engine will tell you that "Confoederatio Helvetica" is the Latin name for Switzerland. It's used on Swiss currency because Switzerland has four official languages and it would be really difficult to put them all on a tiny coin.
Also a bit of trivia is that even though Switzerland is surrounded by the EU which uses "cent" for its small-denomination coins, fractional Swiss coins are denominated in rappenrather than cents.
No. Australian coins, with the exception of the 50 cent coin which is 12 sided or dodecagonal, come in the regulation shape of "round".
It is called a "mini coin". They are manufactured as a novelty and have no numismatic {fancy word for coin collecting} value.
Pictures of a specific coin are difficult to come by. Usually you should be able to find one on eBay, but the picture is withdrawn after the coin is sold. See the link below.
The first Australian 50 cent coin was issued on the 14th of February, 1966, along with the rest of the initial release of Australian decimal coins and banknotes. The original 1966 50 cent coin was round and had an 80% silver content. Due to steep increases in the proce of silver, somebody figured out that the silver was worth more than 50 cents, so the coin was discontinued. All subsequent 50 cent coins were 12 sided and had no silver in them at all.
Check that coin again. Indian head cents didn't come out until 1859.
Center cent century
One cent to many tens of thousands of dollars. Cents have been struck since 1793 at 3 different mints so you're going to have to be A LOT more specific. As a general rule, cents dated 1940-55 that come from circulation are worth 2 or 3 cents. After that, one cent only.
Other than for the the two "E's" in Elizabeth II, there are no "E's" on the front of Australian coins. All Australian coins have "AUSTRALIA" inscribed on the front.
Lincoln was put on the one-cent coin in 1809 to celebrate his 100th year. It then seems logical that Washington should also be on a coin, so he was put on the quarter. When presidents were put on bills, Washington and Lincoln were the most important and were placed on the $1 and $5.
The answer will depend on what cents: US cents, Euro cents or other countries' cents. Different countries use different coinage: the US has a 25 cents coin but but not 20 cents whereas the Euro has a 20 cent coin and not 25.
The value of a 1977 S cent without a mint mark is typically just one cent. The "S" mint mark indicates that the cent was minted at the San Francisco Mint, and cents without a mint mark were generally minted at the Philadelphia Mint. These coins were produced in large numbers and are not considered rare or valuable.
British Pennies do not come in a "2 cent" variety. It is not real.