Evelin - Yes, I can help with finding out the age, but only if we have photos. Please post clear pix of the bottle, closure and label (clear enough so we can read it). As for the value, please send these pictures to Martin Green at Bonham's - Martin.Green (AT) Bonhams.com (a small fee may be involved).
If you need assistance with posting photos, let me know, or just send them directly to me - Joanne (at) CCIN.com -- Please put "Whisky.com Photos" in the subject line.