Sentence:  A railroad right-of-way, straight across the Balkan Peninsula, conceded in Cyrillic and Arabic script all woven in and out of the loveliest green <WSD>guilloche</WSD> by the no-longer-quite-unabsorbed entity of East Roumelia. 
Meaning of the word marked with <WSD> tags:  A fine engraved pattern of spirals, intertwining bands, etc.