Answer:
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.
You’ll have me at night and if you remove the first letter I denote the top, such as on a train
Brown I am and much admired; many horses have I tried; tire a horse and worry a man; tell me this riddle if you can.
Useful tool for who in darkness dwell. Within you, corrupting like a deadly spell.
My first master has four legs, my second master has two. My first I serve in life, my second I serve in death. Tough I am, yet soft beside. Against ladies cheeks I often reside.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.