All my cases are glass small ones are 3mm larger onber are 4 mm glass toughened
--no scratch- no yellowing indefinite lifespan
see examples of cases here that I have made for all my ships--large ( 1/96 cruiser ) and small.. 1/700
viewtopic.php?f=12&t=16218for a most excellent tutorial how to make the cases...
see Bob Wilson's excellent step-by-step here
viewtopic.php?f=4&t=102323some of my sailing ship cases ( all 4 mm glass toughened )

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....I buy them at three times the speed I build 'em.... will I live long enough to empty my stash...?
http://www.modelshipgallery.com/gallery ... index.htmlIPMS UK SIG (special interest group)
www.finewaterline.com