Any wooden window frame with a single glass is easy to turn into a double, having received a kind of glazing is not worse than common now brand.
This will require a brace or composite rod-the glass bead and a slightly larger format than is setup in the window so that you can lay on the frame and press with rail, bothering and seal with a rubber strip or putty.
Recommend to read
INSTEAD OF SHOVELS – MICROCABIN
"Hello, dear editors! Write "M" from 1969. Drawing magazine has fulfilled a number of projects. Pleased with them, that is, on all hundred. Particularly pleased with microtracker...
ILYUSHIN Il-2
In January 1938, the aircraft designer S. V. Ilyushin, who worked at that time chief of the experimental aircraft of the people's Commissariat of defence, appealed to the government with...
