Old 2X Converter - How much is it worth?

[danielfellowes]

Hi,

My girlfriend's dad gave me this today to try and sell for him, but I have no idea how much it would be worth. I can barely tell you anything about it, just what's written on it!

"D&N Auto 2X converter Made in Japan AP" around the top.
Einstellwert and Messwert followed by Aperture values.
and on the bottom it says 'Vierlinser'

The glass is a bit dusty but no apparent scratches so I was wondering if anyone could help? Would love to know anything about it if anyone knows!

Any help would be brilliant! :)

Also, be prepared for another one of these questions as my dad bought a lens the other day because it was cheap... So if it's not gonna fit on my D80 I'm going to be looking to sell that too!

Thanks in advance!

[plumbjob]

Hi,

My girlfriend's dad gave me this today to try and sell for him, but I have no idea how much it would be worth. I can barely tell you anything about it, just what's written on it!

"D&N Auto 2X converter Made in Japan AP" around the top.
Einstellwert and Messwert followed by Aperture values.
and on the bottom it says 'Vierlinser'

The glass is a bit dusty but no apparent scratches so I was wondering if anyone could help? Would love to know anything about it if anyone knows!

Any help would be brilliant! :)

Also, be prepared for another one of these questions as my dad bought a lens the other day because it was cheap... So if it's not gonna fit on my D80 I'm going to be looking to sell that too!

Thanks in advance!
Sorry only thing i could find out is that that may mean Measured Value Setting ( thanks to babel fish)

[danielfellowes]

Thanks for trying anyway :)

Maybe I'd do better asking in the Film section?