A Roman 'ribbon glass cup', probably made Italy in about 25 BC-50 AD: https://blog.cmog.org/2011/06/27/antiquity-or-contemporary/

An eastern Mediterranean mosaic glass bowl, early 2nd century–1st century BC: https://m.cmog.org/artwork/mosaic-glass-bowl

Worth noting that Roman glassware like this made it to Britain too — for example, this Roman mosaic glass dish that was found at Kelshall, Hertfordshire, and was probably manufactured in Egypt c. AD 200: https://northhertsmuseum.org/north-herts-museum-update-an-exceptional-roman-discovery-in-kelshall/

A fragment of polychrome glass discovered in a Late Roman burial that was excavated during the A14 Cambridge to Huntingdon improvement scheme: https://molaheadland.com/the-many-lives-of-objects-found-along-the-a14c2h/

Roman glass also travelled eastwards too, like this fish vessel, ?1stC AD, probably made with glass from Roman Egypt & found at Begram, Afghanistan: http://www.academia.edu/download/26513443/Mairs_2012_Red_Sea_Begram.pdf

Some Roman glass even made its way as far east as Japan; for example, this Roman glass bead was found in the early 5th-century AD Utsukushi no.1 burial mound in Nagaoka-kyo, Japan: http://www.thehistoryblog.com/archives/17691 

A Roman glass plate that was painted in Sasanian Persia before being transported to Japan and deposited in a 5th-century AD tomb at Nara: https://archaeologynewsnetwork.blogspot.com/2014/11/glass-dish-unearthed-in-nara-came-from.html?m=1#Cr3HjU024kviRjwC.97