This is a Carl Zeiss 50/540 (50mm diameter x 540mm fl) achromat in cell. It is marked with the Carl Zeiss logo and is unused in new condition along with it's original box and label. The M44 adapter shown in the photo is NOT included. This would make an excellent little spotting or guidescope. Don't let the tiny size fool you. Zeiss optics and scopes are serious performers.
$75 shipped in US