In average condition value is $7.00-$9.00 each.
Look at your coin again, there were no 1925-D quarters minted. There are 1925 quarters but none struck in Denver.
worn or average condition 6-9$
Current retail is $8.00 for a F-12
Excuse Me - 1925 was released on: USA: 19 January 1925 Finland: 14 March 1926 Germany: April 1926 Portugal: 29 November 1926
Sorry, but M is not a mintmark. See the related question below.
$11 to $11,000 depending on the condition of the coin.
The Dark Angel - 1925 was released on: USA: 27 September 1925 Austria: 1926 Germany: 1926 Finland: 22 March 1926 Portugal: 22 June 1928
The Midshipman - 1925 was released on: USA: 4 October 1925 Austria: 1926 UK: 5 February 1926 Finland: 6 September 1926 Portugal: 9 November 1927
The Pony Express - 1925 was released on: USA: 4 September 1925 Austria: 1926 Finland: 13 December 1926
The Desert Flower - 1925 was released on: USA: 21 June 1925 Austria: 1926 Finland: 4 January 1926
The Night Club - 1925 was released on: USA: 27 April 1925 Germany: February 1926 Finland: 27 December 1926