I have a David Clark headset, model H10-13.4 for sale.
It's in what I would classify as "very good" condition.
I used it back in my CFI and freight flying days. It's been in a box with the Lowrance GPS I have posted here ever since.
I can send a picture to anyone interested. PM me...
Lowrance Airmap 500 Aviation GPS For Sale.
Moving Map
Built In WAAS
Mount
Antenna
Still have the box it came in and all manuals.
I used it for about a year back in my freight flying days. It's been in the box since. I have a picture of it that I can e-mail to anyone interested...