glass case

plural glass cases

1. A vitrine fitted with a glass lid, allowing the enclosed objects to remain visible while preventing direct physical contact.
2. historicalA case for field glasses (i.e. binoculars) or opera glasses.

   Only a specimen of early tourist in knickerbockers, conspicuous by a brand-new yellow leather glass-case, hung about for a moment, scenting something unusual about these four people within the rusty iron gates of what looked the grounds run wild of an unoccupied private house.

   1911, Joseph Conrad, Under Western Eyes, Penguin Classics, published 2007, page 222