Stage1 (letterbox symbol in the picture)
At 96 meters NE (67°) from where the picture was taken (or start coordinates) you will find a map. When was Fredrikastorpet built? Answer: 18xy. It's mentionend in the text on the map.
Final location
The final coordinates for this cache are N 63° 37.107 E 023° 16.4(x-6)y or 8 meters East (89°) from Stage2.
The stamp has an integrated ink pad. Bring your own pad for your personal stamp, if you have one. Stamp the logbook and/or sign as a traditional cache.