Gas lamp mirror

[Buzz68]

Gotten some great help here so 

Here goes need one concave 6" headlight mirror or idea for a replacement

I've seen the replacement mirrors made by Gilbert but though I see what ideas I get here first

Thanks 

[Larry Schramm]

One suggestion that I have heard before is to check a clock repair parts company.

 

https://www.google.com/search?q=clock+glass+replacement&client=opera&hs=xLv&sxsrf=ALeKk027I4UqlnhXdw22yw0AiKoBEpfEyw:1620439636594&source=lnms&tbm=shop&sa=X&ved=2ahUKEwjU36yHgLnwAhV9Ap0JHQxmA_AQ_AUoAXoECAIQAw&biw=1253&bih=626

[Buzz68]

Mirror tgat convex in the light

I have found a lamp that's been robbed of everything else but the mirror 

Will need make mounting blocks

Wedges as the lamp very different but mirror measures correctly