Barnes Safe 1907 patent, need info.

Hi all, I am a member of the Fallbrook Gem and Mineral Society, We have an older Barnes Safe & Lock Co. Safe patented in July of 1907, it is a single door model formally owned by a local Tourmaline gem company in nearby Pala, CA. We are interested in gettting it opened but alas! We dont have the combonation for it. What I really need is to see if anyone knows the correct amount of turns(sequence); left, right, left... ect? to open this guy. we dont need the actual numbers because we are going to turn it into an ongoing contest/ fund raiser for our Society (we are a non-prof) I can get dimensions for it if you need it. I would appreciate any info there might be on this. And no, there is no actual possesions in the safe, we had it open at one point but have simply lost the tumbler sequence, The combination is of no importance. Thanks ahead of time. -matt