The additional pair of legs appears later during development.
The left bay has an additional pair of windows above the bay window.
Attached to the main structure are an additional pair of two story corner towers.
As a result, the company quickly produced 2,000 additional pairs and had them in stores within two months.
Such additional pairs were often hired to passing vehicles to help them either up or down a particularly steep hill.
The rear end had 3 pairs of circular lights (with sometimes an additional pair being at the top).
The third and fourth segments have an additional pair of tubercles.
The present building dates from 1806; an additional pair of houses was added in 1819.
In the summer three additional pairs of trains run each day.