I've got a safe maybe from 2011. Have the keys and there's a sticker at the bottom corner (CK 271 15625). First 3 numbers match the number of the key, so the last 5 numbers I assume is the combination?
There's no branding or model number I can find at all which is making it painful to find information about the safe.
I've tried using 3 digit combinations (15 6 25, 1 56 25, 15 62 5) without much luck, though could well be I'm not doing it right. It seems the twists are relatively standard but can vary. Perhaps it's a 4 combination lock though that would mean most digits are < 10 which seems like it wouldn't be right (the largest number is 90 FYI).
Any ideas on how I can get it open, or what brand it is? Is this sticker even the combination or am I banging my head against a wall there?
Full size image of the front here: http://i.imgur.com/Sx9pMSY.jpg