The Rheinland Palatinate...to give it its proper name was formed after 1945..its capital city is Mainz...as you have said in Western Germany, can i take it that you visited there pre 1989...these doors are quite common..and examples can still be found today..They are most likely made of pine,..but could be oak,will measure in excess of 2.4m.high by about the same wide if not more,.the grill insert will most likely be made of cast iron...they were normally situated at the entrance to a corridor...that led to the individual apartments...the stained glass door would have been at the entrance to the apartment...age wise...probably..ea
rly 1800,s.. Architectural value will depend on...do you have all the pieces,..are they whole,..and most importantly...what country are you in...If you are in GB,then prices for this type of thing are quite high...especially when someone is doing a barn conversion...I have seen doors like this,once they have been restored change hands for £600/700.+...now that i am refreshed...looking at the glazed door...the glass centre panel has an acid etched motif,..the side panels also will have been acid etched...as you picked them up in the Rheinland...would,nt it be great if they came from this street....as I picked this up at a floh markt..in Trier...which happens to be the oldest city in Germany...having been founded by the Romans...in 16BC...and this whole area is renowned for its wine,especially around the Moselle valley,There is also the city Koblenz,which is famous for the Legend of Lorelei...
http://www.angelfire.com/moon2/lorelei10/Lorelei2.htmlhere also is a pic of the rhine as it flows past the Rock of Lorelei...