I bought these at a local antiques fair. Not sure how old they are. My guess is 1910s or 20s, going by the rather minimalist design. I just think they're adorable!! They're in absolutely flawless condition!! A bit of disassembly to blow out the dust and clean the lenses - and then - PERFECT!
If you haven't found this yet, will help with dates. http://chicagoantiquesguide.com/archives/20060105084811.php Debora
Hmm. So I guess I was right-ish. Ca. 1910. I thought it was more 'modern', because it doesn't follow the usual shape that most opera-glasses of the Victorian era seem to do.
Yes Edwardian era sounds right. Although that said, they do still look surprisingly modern for something that's over 100 years old.