my thanks for ALL replies. Anne, my apologies - I had looked thru Jenny Thompson, but obvioiusly too quickly and didn't see this - and yes, you may of course have for the Glass Gallery. If you need better/other pics. let me know
In view of the depth of the 'shells', then suggestions re jam/marmalade/preserves are perhaps more likely than anything else - but pipes, I can't go with.
Really, quite a versatile piece - and I guess any kind of preserve/nibbles/nuts can be accommodated, so a genuinely useful piece of kit.
I can appreciate the use for paperclips/rubber bands etc. - very practicable - and reminds me of the flower dome that sits on my desk in front of me now.....into which I poke pens and pencils......couldn't have been designed better if I'd tried.