Genuine original Voigtlander 43mm front lens cap.
Fits perfectly Voigtlander screw mount lenses with 39mm filter rim and hood:
Voigtlander Color Skopar 35mm f/2.5 M39 lens;
Voigtlander Heliar 15mm f/4.5 M39 lens;
Voigtlander Skopar 25mm f/4 M39 lens;
Voigtlander Skopar 28mm f/3.5 M39 lens.

There are some scratches on the cap. Please see the pictures.
Works just fine.

I have many rangefinder lenses and other photo-equipment for sell now, please see my other auctions. I do combine shipping.

Any questions - please ask. I'll be happy to help.