Decanter kluk kluk style hand blown, painted or etched with color, maybe 100+ years old

Kluk Kluk style decanter with original stopper and hand painted or etched color.
Questions: Is this kluk kluk from Denmark, Germany?
Comes from estate where everything is over 100 year old so is this decanter that old? There appears to be no hallmark but the obvious places are emply, any suggestions on finding this?