"It's a mirror Jim, but not as we know it."

[cotterless45]

Worth a punt or sinking ?

http://www.ebay.co.uk/itm/Huge-Antique-Parabolic-Reflecting-Mirror-for-Telescope-22-1-2-cms-Diameter-/371233125657?&_trksid=p2056016.l4276

Personally I'd love a huge Dob and a slave to lift it out into the garden,

Nick.

[Bart]

Nick, I thought it was huge until I saw the wine bottle. I thought it was 22 in but at 22cm I now realise I have a huge mirror! Great!!!

Sent from my iPhone using Tapatalk

[dweller25]

Does one of the secondarys look like it's for a Cassegrain ??

[philj]

An interesting piece, to non astro types, (muggles) I suppose 22cm is big.

Its quite a long fl, has the potential for a planetary scope.

Cant see any secondary Dave, I think thats the container lid/mirror dust cap

[nightfisher]

Nick, give it a miss, you would be MUCH better of buying my 200 newt and making it into a dob     bye the time you had sourced a secondary to work with it, and got it recoated it would work out pricey and as phil says, if it came from a cass then it would not work as a dob

[dweller25]

An interesting piece, to non astro types, (muggles) I suppose 22cm is big.

Its quite a long fl, has the potential for a planetary scope.

Cant see any secondary Dave, I think thats the container lid/mirror dust cap

Phil - your right - having re-looked at the images I think the various photos show just one mirror with a wooden circular container plus a metal circular lid.

This mirror looks really bad to me - I would avoid and like Jules says a modern 8" scope with known performance can be picked up relatively cheaply and is good to go straight out of the box....

[moriniboy]

Probably cost £90+ to have it re-silvered and you won't know how good it is until that's done.

I took such a risk with my AE 6" and it worked out fine, mind you I got it for a song in the first place so it was worth the punt.

A 220mm F9 scope is quite interesting though

[Scott]

The "usual scratches" to the mirror is a bit worrying. If they're bad then it'll need more than a resilver . It'd be a great project for anyone interested in regrinding (if it's  needed).Hope some one here buys it and keeps us upto date

[swamp thing]

The "usual scratches" to the mirror is a bit worrying. 

"A bit worrying" slight understatement there Scott

It was, major alarm bells ringing for me. I wouldn't go near it. 

[Ganymede12]

Although probably impractical as a functioning mirror  its value as an antique is interesting (if it is 100 years old). 

[dweller25]

Another factor - check out it's thickness - it will take a long time to cool down