Got three of these units. Spectra Physics B8-355Q-NSI. 355NM frequency trippled YAG. These are just the heads. The laser diode and the controls for the SHG and THG resided in another unit which we dont have. It has a small q-switch head and what looks like an AOM after that. They have over 9000 hours on them.
Heres the odd part. One of the units has the same part number but a hand written note on it saying 266nm rail. So it may be modified.
Here are some pics. It was already opened when we got it.
$850 each.
IMG_2503 by macona, on Flickr
IMG_2502 by macona, on Flickr
IMG_2506 by macona, on Flickr
IMG_2501 by macona, on Flickr