This is a Losmandy DSBS dual saddle plate for the G-11 type mounts.
Side by side plate that incorporates two saddle plates mounted parallel to each other. Used for mounting two optical systems side by side, by rotating the G-11 saddle 90 degrees. It is in good condition with typical slide marks in the anodizing from sliding the dovetail plates into the saddles and a few battle scars but it works great. There are two threaded holes in the center of the bar that were added by the previous owner to mount a third plate for using a slider and mounting a camera.
$165.00 Shipped conus (this little sucker is heavy) Paypal (No Surcharge)or USPS money order accepted. Thanks for looking.