A hole in my jacket

[theborderer]

I am sure that somewhere under the lining there is a like piece hidden from view. Cut this out and using the fusible interfacing "glue" it into the hole. There might be a variance of colour.

[Macman]

Thank you all for your advice; I appreciate it!
I took it into my tailor on the weekend, and it turns out the jacket has a number (at least a dozen) little weak spots all over it. It's been dinner for moths.
My tailor is going to try interfacing in behind the material and see how it ends up. I'll let you know the results.
Either way, a new jacket is in the cards!
Thanks again,
David