"News" wrote in message
...
In message , Rod Speed
writes
"News" wrote in message
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Our windows are all still original Victorian sash, and many panes (with
flaws) are probably original, too. One bedroom window, at the front, is
odd. Traditional sash, with four panes of glass, yet one of the four
always looks as though it is not there, from outside. It just looks
dark, and you would think the whole pane was missing. Looking out, from
the bedroom, it looks exactly like the other three. No idea why.

Presumably the outer surface is different because
it got broken and replaced at some time.

Indeed, but why? Other panes have been replaced over time, and look the
same from both inside and outside. Why just that one? Rhetorical
question, really. Strange, though.

Presumably because that was either all that was readily
available in that size at the time it needed to be replaced
or whoever used it didn't actually notice that it was anything
different to what was already there.