Demountable camper group

Just wondering has anyone upgraded their Original single glaze door to double glaze ?

B.

Mine is double glazed , I guess yours is different?

I did lookat replacing mine for a more modern looking caravan door but they all seem to be quite a bit narrower

Interesting, is that glass or plastic ? And is there a name/logo, serial number etc on it ?
Thanks
B.

It is a plastc window .
I am pretty sure my door is original as it has pencil marks on it " Walker Bodies Ltd ". It does not look like it has been messed with to replace the glass

Thanks, really appreciate that info , I've googled and sent a query regarding getting these.
Happy and Healthy New Year to you all

B.