about glass?

Posted by Tim49 On 2016/3/20 15:05:48

For the last few days I have been puttering around with my 1952 200.
I noticed the passenger vent wing window has a long crack.

And about 2 years ago when I parked the car after a drive I rolled the drivers door window up and it had a new crack.

Is it normal for this old glass to start cracking?
I thought maybe the door glass cracked because someone was looking at the car and slammed the door......
(I try never to close the door hard with the window down)
these cracks just appeared...

thanks for your advice,tim