The value of a 1929-D Standing Liberty Quarter can vary depending on its condition. Here's a breakdown:

• Circulated Condition: A 1929-D Standing Liberty Quarter in circulated condition, meaning it has been spent in everyday transactions and shows wear, can range from $5 to $130 according to the NGC Coin Explorer [NGC Coin Explorer, 1929 Standing Liberty Quarter Value].
• Uncirculated Condition: If your coin is in uncirculated condition (MS on grading scales), meaning it wasn't used in circulation and has very little wear, it can be much more valuable. High grade specimens, like MS-67 or higher, can reach into the thousands of dollars.

Here are some additional factors that can influence the value of your 1929-D Standing Liberty Quarter:

• Grading: Obtaining a grade from a reputable grading company like PCGS or NGC can enhance the value and authenticity of your coin. A graded coin will typically come with a certification document outlining its condition.
• Mintmark: The "D" mintmark on your coin indicates it was minted at the Denver mint. While not the rarest of mintmarks for Standing Liberty Quarters, it can still hold value to collectors.
• Luster: The amount of shine or brilliance remaining on the coin's surface (original mint luster) can add value, especially for uncirculated specimens.

Here are some resources that can help you determine the exact value of your 1929-D Standing Liberty Quarter:

• PCGS CoinFacts: https://www.pcgs.com/coinfacts/coin/1929-d-25c/5774
• NGC Coin Explorer: [invalid URL removed]
• Professional Coin Dealer or Numismatic Expert: Consulting a professional can provide the most accurate appraisal based on the specific characteristics of your coin.