These are, I believe 2 rail supports for some camera when using the extension rail. The color and wood makes me think it might be for a Korona. If someone needs, them, make me an offer. Both rails are identical - I turned one sideways so you can see the curvature they have on the bottom.
I'd think they'd fit in a priority mail envelope, so shipping should only be $5 or so. Paypal fees, if any, to the buyer.