Here is a bit of info on your D10.
- dreadnought style, select spruce top, round soundhole, black pickguard, three-stripe bound body and rosette, mahogany back/sides/neck, 14/20-fret rosewood fingerboard with pearl dot inlay, rosewood bridge with pearl dot black pins, three-per-side chrome Grover tuners, available in Black, Blueburst, Natural, Trans. Red, or Sunburst finish, mfg. 1990-2000.
Grading 100% Excellent Average
$245 $125 - 175 $75 - 100
Last MSR was $350.
The phrase "select spruce" means it's laminated. If it had a solid wood top it would be a D10S. The "b' is the color indicator, so i assume your guitar is black. It was made in 1996. It has a current value of about $100, depending on condition.