I have these spare from another project and want to get rid of them. Selling or trading for any acceptable offer.
Broadband mirrors are 15x20mm (see photograph) and front surface coated with dielectric film. Should be perfect for in-projector bounce mirrors or knife edge mirrors.
The whole lot is 42 pieces. I'd be happy to send any samples (1 or 2 mirrors) for free (or a postage stamp), but I'm not giving away everything. Depends on the trade offer everyone is willing to make me.
EDIT: I did a count and it turned out to be just under 50 mirrors. I decided to keep a few for myself and sell them as a nice round number.