You are looking for a black bird house. The front draw contains many tools you may need to open the combination lock. Once unlocked, open the side door and sign the log.
Permission was give for this cache by the Hebron Recreation Department..
After over 50 cache attempts with only a couple of "Found It" logs (without calling the CO for hints, a Phone A Friend or being the prior owner of the cache). Its time for a hint. Please do not decrypt the hint until a honest attempt at solving it. Its tricky but worth it.
Its been reported that only 2 of the 4 lock digits are visible. Use 17 and 20 for missing lock info.