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Quadra fictilis
From Wikipedia, the free encyclopedia
Quadra fictilis[1] sunt laminae ex argilla testa factae, quae ad firmandum et decorandum muros et areas quam foris tam et intus aedificiorum usurpantur. Saepius formam quadrati vel rectanguli habent, sed quadrae diversarum formarum produci possunt et producebantur. Poliri et ornamentis ad opus tessellatum componendum decorari possunt, sed saepe et impolita et sine ornamentis quadra producitur.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Berlin_-_Pergamon_Museum_-_Persian_warriors_-_20150523_6849.jpg/640px-Berlin_-_Pergamon_Museum_-_Persian_warriors_-_20150523_6849.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/5/52/Louvre_-_carreaux_ottomans_08.jpg/640px-Louvre_-_carreaux_ottomans_08.jpg)