He had built an underwater case for it from stainless steel and lucite.
"The Wailing Octopus"
Harold Leland Goodwin
"In fact, he told me, in so many words, that he would be most happy if you sent him his nephew's head in a block of lucite.
"Space Viking"
Henry Beam Piper
Both were dressed in what looked like workmen's overalls made of lucite chain-mail, or knitted glow-worms.
"Freudian Slip"
Franklin Abel