30"  H Huntsman & Sons. Savile Row, breeches
 
White
Button Fly
Button Cuff
2 Front pockets
 
Made by H Huntsman & Sons of Savile Row, arguably the VERY best of all hunting tailors.  
 
All measurements taken on the outside with the garment laid flat:
 
A - Across waist - 15"  (to fit up to 30" waist)
B - Outside leg - waist to cuff - 31"
C - Inseam - crotch seam to cuff - 19"
D - Inseam - crotch seam to knee seam - 15"
E - Across knee seam 6"  (to fit up to 11.5" below knee)
 
In great wearable condition but with a  few signs of age - faint staining to left leg (barely visible) and very tiny rust spots to upper left seat - (see pics) and priced accordingly