US Banknotes

• series 1928 / 1,103,640 plus 1,800 "star" notes,
• series 1934 / 915,424
• series 1934A / 645,912
• series 1934C / 1,368

It doesn't have a specific name like those given to Egyptian pyramids. Rather, it's taken from the reverse side of the Great Seal of the United States, and is a symbolic representation of the US' founding:

• It has 13 layers, representing the 13 original colonies
• It's unfinished, indicating that the United States remains a work in progress
• Instead of a capstone, the top shows the Eye of Providence watching over the United States
• The bottom shows the date 1776 in Roman numerals
• The two mottoes are in Latin. Annuit cœptis translates roughly that Providence has "approved of (our) undertakings" while Novus ordo seclorum is "a new order of the ages."

If the bill is dated 1963 or earlier please look for questions in the form "What is the value of a <date> US 2 dollar bill."

If the date is 1976 or later, all the "A" means is that the bill was distributed by the Boston Federal Reserve District. Unless it's in pristine condition, a $2 Federal Reserve Note is worth face value only.

Your question isn't clear.

If you're referring to a silver dollar coin, none would have been made with any kind of red marking on them; it was almost certainly added after the coin was made. Depending on what the "red" is - paint, varnish, chemical damage, etc. - the coin's value could be adversely affected. It would have to be examined in person to be sure.

If on the other hand you're referring to a paper billwith a red seal, what you have is an obsolete form of paper money called a United States Note rather than a silver certificate. In this case please post a new and separate question with its seal color, date, and whether there's a small letter next to / under the date. That information is important when determining a value. You don't need to include the serial number, though.

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US Notes were printed from 1862 until 1971, although the last ones were dated 1966. They were similar to Federal Reserve Notes except that they were issued directly by the government rather than through the central banking system. Starting in 1928, the seal color was changed to red as a unique identifier. Even though US Notes were functionally identical to green-seal Federal Reserve Notes they continued to be issued for several more decades. The Treasury finally discontinued them to reduce printing and accounting costs.

Silver certificates were a different type of paper money backed one-for-one with silver on deposit in the Treasury. Starting in 1928 all silver certificates were identified by blue seals. Silver certificates were discontinued in the early 1960s when the price of silver was deregulated.

Red-seal Federal Reserve Notes from 1914 are fairly rare, so you should have your bill authenticated by a dealer or appraiser. As of 08/2015 approximate retail prices are:

• Circulated: $400 to $1000 depending on the bill's condition
• Uncirculated: $2000

FAQs:

"In God We Trust"

That motto was adopted in 1955 and was added to bills starting in the late 1950s and early 1960s. The fact that it isn't found on older bills is normal and NOT a printing error.

Serial Numbers

A bill's serial number is a counter and a security feature. In most cases it doesn't affect a bill's value or help to identify it. Some collectors specialize in bills with low serial numbers (e.g. 00000005) or unusual patterns (12344321) so these can bring above-average prices.

DISCLAIMER: The values quoted are market averages as of the date shown, but may be different for an individual bill due to variations in quality and other factors. Also the wholesale (buying) price of a bill will be less than the selling (retail) price. A reputable currency dealer will be able to give a more accurate valuation based on an in-person inspection.