Since the Hellenistic period. preparatory drawings known as sinopiae were employed as guidelines for mosaicists in creating mosaics. The sinopiae served as the basis for style and content. facilitating the placement of colored tesserae in the supporting mortar. https://safeersappliancers.shop/product-category/bertazzoni-kin86mod1xb-86cm-modern-series-canopy-hood-stainless-steel/