First of all! The coordinates are bogus. Don´t go there. If you don´t know the location of the small town of Rimbo, they can be to some assistance.
Between the years 1885 to 1981 Rimbo had a railroad connection to Stockholm. Today only the railroad station and some other buildings (lokstallar) remains. A semaphore from this railroad has been saved too..
To find the cache, you have to find the semaphore. Count the steps on the semaphore "ladder". No need to climb it! Also, count the bolts holding the construction to the concrete base.
To find the cache, use the following mathematics.
N59 44.Steps*Bolts*6+43 E018 21.Steps*Bolts*4+88
There´s no pen in the cache, so bring your own!
2018-04-18 Due to construction work, the cache has a new position (Thanks to anella54) and the mathematics has been updated
2020-01-04. New position, new hint, new mathematics.