Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
I have read your account and your full question with attention. It's a shame the model # isn't available, but there are other ways of obtaining it.
First of all, you may have an advantage if you are the original purchaser of the safe. Are you ? if so. locating the original bill of sale may help immensely.