The vehicle

The … B-type is a model of double-decker bus that was introduced in London in 1910… A total of 900 of the buses were used to move troops behind the lines during World War I. [1] [2]

The kit

Airfix 1/32 kit [3].

References

1. https://en.wikipedia.org/wiki/LGOC_B-type
2. http://www.britmodeller.com/forums/index.php?/topic/234985326-london-general-omnibus-company-type-b-bus/
3. http://www.airfix.com/uk-en/wwi-old-bill-bus-gift-set-1-32.html