The search box is always at the top of the landing page window. Type a word, or two words separated by AND or OR and the search engine returns a list of items.
Searches can be specific within the title only, or include the whole site. You can use the latter option to search on a country or a material of construction for example.
The output from the search can be viewed either as a list or a grid.
It can also be ordered according to various parameters such as the date listed, the age of the object, the title as well as its merit, size and weight.