Sorry if this was mentioned before but is the Lower German Limes supposed to be an extension or a new inscription attempt?
But the question has brought out an interesting aspect about the series of extensions (2 already inscribed plus this one on top of the original "Hadrian's wall" - so "Antonine", "Upper German Raetian Limes" and "Lower German Limes") which have been taking place of which I, for one, was unaware.
See the final section on the UNESCO page for this T List site ( http://whc.unesco.org/en/tentativelists/6299
I.e Each individual extension is supposed to ADD something to the overall inscribed set of locations as opposed to giving more and more countries a chance to jump on the bandwagon by inscribing yey more forts, ditches etc etc etc etc!
So this particuklar extension is described as follows - "Comparison with other similar properties
The Frontiers of the Roman Empire World Heritage Site is a serial nomination for which the participating States Parties have agreed that all component parts should have OUV. This means that the overall Frontier will eventually be represented by a series of components that will each display particular and significant characteristics of the Frontier, and together the components as a series will show how the Frontier reflected substantial and distinctive responses to local topographical and political conditions as well as the unifying forces of the Empire.
For the German part of the Lower German Limes, the emphasis is on the interaction of the various levels of garrisons and the army's involvement in mining, industry, logistics and building activity."
Which raises the questions
a. What specifically were the previous extensions considered to add
b. What are the future T List extensions supposed to be adding (and how many are there likely to be, do we know how they are progressing etc etc)
c. Is there anywhere an overall document describing the "vision" for the entire ensemble?
I shall look see!