This is a Dutch East Indies Undated Pre Stamp Full Letter from 1855, sent from Bekelen (?) to Samarang.  A little help here would be lovely, as this hard to tell if the second letter in that word is a b or an a.

This cover has a lovely, large RED ONGEFRANKEERED BEKELEN, again, we're unsure of the word, (176c).  It also has a full wax seal!

Take care because this item, though in very good shape, is still extremely old!