The Duke of Wellington normally wore a blue coat and it was not part of a uniform as he did not wear one.
So his soldiers wouldn't use their coat sleeves on wipe their noses on.
Trench
Coat of Paint
The traditional style of pea coat was originated in Britain in the mid 1800's, and was adopted by several militarizes around the world as a uniform. The style is double breasted, with two rows of buttons down the front.
A 3-ply thread is generally recommended for coat buttons, due to their size and weight. A 3-ply thread is generally recommended for coat buttons, due to their size and weight.
a coat of paint
red
The buttons on my coat became unfastened.
The button on my coat fell off.
If you are looking for authentic, no, as 10 year olds where not in the cavalry, though in a pinch, you can make one with a "suit" jacket and some buttons. Just add some buttons to the coat to give it a cavalry look, then have him dress in kakis with "boots" you can make from tubes of cloth.
Check www.gwbuttons.com or Ebay store buttonsandtrim for coat buttons.
Replacement buttons for a Calvin Klein coat can be requested from the company. It is also possible to match buttons at a fabric store to get a replacement that will be close in appearance. Another option would be changing all the buttons on the coat.