![JDSU Green HeNe laser 543.5 nm (model unknown, 21" long) with power supply | eBay](https://i.ebayimg.com/images/g/bwwAAOSwVqVjj53f/s-l1600.jpg "JDSU Green HeNe laser 543.5 nm (model unknown, 21" long) with power supply | eBay")
JDSU Green HeNe laser 543.5 nm (model unknown, 21" long) with power supply | eBay
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