This is something as rare as a jasmine tea from Anhui. It is produced in Shexian 歙县 and the main producer is supposed to be 歙县 茶厂 Shexian Tea Factory (translated name) which is probably another name for 黄山市 歙县 牡丹 茶厂. The tea has been produced since the early 1980s and received awards in 1982 and 1986. The tea leaves used comes around Huangshan.
The scenting is made in several production stages with the help of jasmine flowers and about as much jasmine flowers as tea leaves are used.
The graded tea comes from a Chinese online store . The bag of tea cost 28 Yuan for 250 grams which is surprisingly affordable. It is harvested in 2011 and comes from Shexian 歙县 but I know unfortunately not by whom.
Source: Posts from 2003 at http://bbs.molihua.net/thread-271-1-1.html