This knife is in Excellent Condition but shows signs of light polishing.
A  adjustable throwing knife. Also called the Wurfmesser.
Appears to show no use but shows some light buffing to the blade.
These knives were made of High Carbon steel and subject to show tarnish and stains.
The balance of the blade may be adjusted by turning the Screw in or out until optimal balance is achieved. This was the smallest of the two models.