I got these the other day from a retired GPO/BT Engineer. The plans are in excellent original condition and relate to pre teletalk posts!

These particular plans were still in there original folder and relate to Woolverstone Post, Suffolk. Now sadly no longer with us as its been demolished.
Apparently the room still exists below the carpark which now covers it over!





There are a number of other wiring documents relating to the pre 68 closure period. Basically all of the material that a GPO engineer would have needed when visiting a post!