translation and a brief history about the man on the coin.
The 1966 Bahamian silver dollar was issued as a commemorative coin to mark the Royal Visit of Queen Elizabeth II to the Bahamas. Its value depends on its condition and rarity, but generally, it can be worth around its silver content value or slightly higher to collectors. It's recommended to check with a coin specialist or collector for a more accurate valuation.
Project Mohole had four phases: Feasibility Study (1957-1961): This phase involved studying the geological, technical, and logistical aspects of drilling a hole through the Earth's crust. Pilot Hole Drilling (1961-1966): A pilot hole was drilled off the coast of Guadalupe Island in Mexico using a specially designed drillship. The goal was to test drilling techniques and equipment. Deep Hole Drilling (1966-1967): In this phase, a larger drillship was used to drill the main hole. The objective was to reach a depth of 3,000 meters (almost 10,000 feet). Project Abandonment (1967): Funding issues and technical challenges led to the abandonment of the project, and the hole was sealed and closed.
The first documented crop circles appeared in the English countryside in the late 1970s. The patterns gained attention for their intricate designs and unexplained origins, sparking debates about their creation.
Archaeological preservation laws began to be introduced in the late 19th and early 20th centuries in response to the destruction and looting of archaeological sites. The specific timeline varies by country, with some implementing laws earlier than others. For example, the Antiquities Act of 1906 in the United States was one of the earliest laws focused on archaeological preservation.
translation and a brief history about the man on the coin.
It's worth about $4 for its silver content.
It's currently worth about $4 for its silver content.
It is a quarter of a Balboa, the unit of currency in Panama.
Silver Australian coins were first issued in 1910 and were made from sterling silver which has a 92.5% silver content. This changed from 1946 onwards and the silver content was reduced to 50%. No Australian general circulation coin has had any silver content since 1966, except for the round 1966 50 cent coin. The silver content of the older predecimal coins possibly values the coins at more than face value, however, if the coins are in good condition, the collector value may be higher.
The 1966 Philippines 25 Centavos is composed of copper, nickel and zinc, with no silver content.
The short answer is 1966. Australias last "silver" predecimal coins contained 50% silver. The last of these coins were minted in 1963 and 1964 and were withdrawn soon after decimalisation in February 1966. The only Australian decimal general circulation to ever contain silver, was the 1966 (round) 50 cent coin which had an 80% silver content. Due to the soaring price of silver a short time later, and with the benefit of the wisdom of hindsight, this was a terrible blunder since the silver content of the coin was worth much more than 50 cents, and these coins were withdrawn very quickly.
My best guess is that your coin is a one-half ("medio") balboa piece from Panama. Panamanian balboas track the U.S. dollar on a one-for-one basis and are struck on the same planchets. Your 1966 coin was thus struck on the same 40% silver blank used for Kennedy halves of the time, so it would be worth $3 or $4 for its metal content.
Zero. A 1966 U.S. quarter is 0% silver.
Silver coins dated before 1920 are sterling (.925%) silver. Dollars, half dollars, quarters and dimes from 1920 - 1966 are all 80% silver by weight. An easy calculation to figure out the pure silver weight: Multiply .6 oz per dollar of coinage. Example: $10 of 1966 dimes would be .6 x 10 or 6 oz's of pure silver. Multiplying the total by today's price would give you "melt" value of the coins.
The only Australian decimal general circulation coin to contain any silver was the 1966 "round" 50 cent coin. It was made from 80% silver and 20% copper. The price of silver soared in 1966/67 and the silver content became much more valuable than the face value of 50 cents. The coins were soon withdrawn from circulation and replaced in 1969 with the more familiar 12 sided cupro-nickel 50 cent coin.
1966 Kennedy half dollar is 40% silver and valued at about $2.50 for the silver.