Thousands of bricks have been found in the area of Slovakia, and in many cases they provide us information about possible date of buildings. Most of the finds come from old excavation and need to be re-examined.
New methods such as petrography and morphometry have been used to analyse material from Bratislava-Rusovce. As the result, four main groups of identical stamps were identified.
Analysis of clay show the origin of bricks in Vindobona.