Walnut Staircase. Rails and treads coloured to match existing floors. These are before and after pictures.

Walnut Rail Scroll French Polished
Walnut Rail Scroll French Polished Full Shine
Walnut Rail Swirl French Polished Full Shine
Walnut Staircase French Polished
Walnut Rail French Polished
French Polishing Walnut Rails

Mahogany Staircase. This post is pine.  It was coloured to match the staircase.

Mahogany Staircase
Mahogany Staircase Colour Matched Post