Tin Sign Info

Alcatraz Island is an island located in the San Francisco Bay, 1.5 miles (2.4 km) offshore from San Francisco, California, United States.  Often referred to as “The Rock”, the small island was developed with facilities for a lighthouse, a military fortification, a military prison, and a Federal Bureau of Prisons federal prison until 1963.  Beginning in November 1969, the island was occupied for more than 19 months by a group of American Indians from San Francisco, who were part of a wave of Indian activism across the nation, with public protests through the 1970s. Later, in 1972, Alcatraz became a national recreation area and received designation as a National Historic Landmark in 1986.

Today, the island’s facilities are operated by the National Park Service as part of the Golden Gate National Recreation Area; it is open to tours. Visitors can reach the island by ferry ride from Pier 33, near Fisherman’s Wharf in San Francisco. In 2008 the nation’s first hybrid propulsion ferry started serving the island. Alcatraz has been featured in many movies, TV shows, cartoons, books, comics, and games.

This license plate tag makes a great gift.

Dolphins are marine mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in seventeen genera. They vary in size from 1.2 m (4 ft) and 40 kg (90 lb) (Maui’s Dolphin), up to 9.5 m (30 ft) and 10 tonnes (9.8 LT; 11 ST) (the Orca or Killer Whale). They are found worldwide, mostly in the shallower seas of the continental shelves, and are carnivores, mostly eating fish and squid. The family Delphinidae is the largest in the Cetacean order, and relatively recent: dolphins evolved about ten million years ago, during the Miocene. Dolphins are among the most intelligent animals and their often friendly appearance and seemingly playful attitude have made them popular in human culture

If you love dolphins here is a license plate sign for your wall or car.

It is not so easy to define exactly what we mean by a lighthouse, and various organizations and individuals have used very different definitions when describing or classifying lighthouses. Clearly, all lighthouses are lighted aids to navigation, but not all lighted aids are considered to be lighthouses.

Some definitions are not controversial. An aid to navigation is a structure placed on or near navigable water to provide visual guidance to mariners. A beacon is an aid to navigation that is fixed in place (that is, not floating). A lighted beacon or lightbeacon is a beacon displaying a light, while an unlit beacon is called a daybeacon. Often, a lighted beacon is simply called a light.

In this Directory, a lighthouse is a lightbeacon having a height of at least 4 meters (13 ft) and a cross-section, at the base, of at least 4 square meters (43 sq ft). This simple definition does not require that a lighthouse have any particular form or appearance. The structure of a lighthouse may be enclosed, partially enclosed, or completely open.

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