Double eagle

A double eagle is a gold coin of the United States with a denomination of $20. (Its gold content of 0.9675 troy oz (30.0926 grams) was worth $20 at the 1849 official price of $20.67/oz.) The coins are made from a 90% gold (0.900 fine = 21.6 kt) and 10% copper alloy and have a total weight of 1.0750 troy ounces (33.4362 grams).

The "eagle", "half eagle", and "quarter eagle" were specifically given these names in the Act of Congress that originally authorized them ("An act establishing a mint, and regulating coins of the United States", section 9, April 2, 1792). Likewise, the double eagle was specifically created as such by name ("An act to authorize the coinage of gold dollars and double eagles", title and section 1, March 3, 1849).

The first double eagle was minted in 1849, coinciding with the California Gold Rush. In that year, the mint produced two pieces in proof. The first resides in the Smithsonian Institution in Washington, D.C. The second was presented to Treasury Secretary William M. Meredith and was later sold as part of his estate—the present location of this coin remains unknown.

PGA Tour

The PGA Tour (officially rendered in all capital letters, as PGA TOUR) is the organizer of the main professional golf tours played primarily by men in the United States and North America. It organizes most of the events on the flagship annual series of tournaments also known as the PGA Tour, as well as the Champions Tour (for golfers age 50 and older) and the Web.com Tour (for professional players who have not yet qualified to play in the PGA Tour), as well as PGA Tour Canada, PGA Tour Latinoamérica, and PGA Tour China. It is headquartered in Ponte Vedra Beach, Florida, a suburb of Jacksonville.

Originally established by the Professional Golfers' Association of America, it was spun off in December 1968 into a separate organization for tour players, as opposed to club professionals, the focal members of today's PGA of America. Originally the "Tournament Players Division," it adopted the name "PGA Tour" in 1975 and runs most of the week-to-week professional golf events on the tournament known as the PGA Tour, including The Players Championship, hosted at TPC Sawgrass, the FedEx Cup, with its finale at The Tour Championship at East Lake Golf Club, and the biennial Presidents Cup. The remaining events on the PGA Tour are run by different organizations, as are the U.S.-based LPGA Tour for women and the other men's and women's professional tours around the world.

Double

Double may refer to:

People

Mathematics and computing

Eagle

Eagle is a common name for many large birds of prey of the family Accipitridae; it belongs to several groups of genera that are not necessarily closely related to each other.

Most of the 60 species of eagles are from Eurasia and Africa. Outside this area, just 14 species can be found – two in North America, nine in Central and South America, and three in Australia.

Description

Eagles are large, powerfully built birds of prey, with a heavy head and beak. Even the smallest eagles, like the booted eagle (Aquila pennata) (which is comparable in size to a common buzzard (Buteo buteo) or red-tailed hawk (B. jamaicensis)), have relatively longer and more evenly broad wings, and more direct, faster flight – despite the reduced size of aerodynamic feathers. Most eagles are larger than any other raptors apart from some vultures. The smallest species of eagle is the South Nicobar serpent eagle (Spilornis klossi), at 450 g (0.99 lb) and 40 cm (16 in). The largest species are discussed below. Like all birds of prey, eagles have very large hooked beaks for tearing flesh from their prey, strong muscular legs, and powerful talons. The beak is typically heavier than that of most other birds of prey. Eagles' eyes are extremely powerful, having up to 3.6 times human acuity for the martial eagle, which enables them to spot potential prey from a very long distance. This keen eyesight is primarily attributed to their extremely large pupils which ensure minimal diffraction (scattering) of the incoming light. The female of all known species of eagles is larger than the male.

Colt Double Eagle

The Colt Double Eagle is a double-action / single action, semi-automatic pistol manufactured by Colt's Manufacturing Company between 1989 and 1997. It was the first double-action semiautomatic pistol offered by the company and was available in standard full-size, as well as in more compact versions. It featured a decocking lever, and was chambered for several calibers. The family of models was known as the Series 90.

The design of the Double Eagle was based on the Colt M1911 pistol. Magazines are single stack and are identical to magazines shipped with the M1911. Most of the Double Eagle models were available in stainless steel only, however the "Lightweight" Officer's had an alloy frame and blued slide.

The slide used a version of Colt's series 80 locking firing pin safety, but unlike Colt's series 80 pistols, the Double Eagle Officer's model in .45 ACP held an 8-round magazine.

Variations

The Double Eagle was chambered for several calibers; among the more common are .45 ACP and 10mm Auto. Occasionally, one will see a copy in .40 S&W, 9×19mm Parabellum, and .38 Super. Similar to the M1911, Colt offered, in addition to the full-sized version, the more compact Commander and Officer versions. The full-sized version was chambered for .45 ACP and 10mm Auto, as well as in 9mm and .38 Super for a time in 1992. The Commander was chambered for .45 ACP, along with a somewhat rare .40 S&W version in 1992. The Officer's model was available in .45 ACP and rarely .40 S&W, again only in 1992. Colt eventually redesigned the trigger mechanism and added a retaining plate due to some shooters having problems with skin being pinched by the top part of the trigger, as well as some springs only being retained by the grip panel. The result was the Double Eagle Mark II.