How to open an older floor model sentry safe?

Question

I bought a home 20 years ago with a floor model Sentry safe that was locked and cemented in the closet of the master bedroom. The previous owners did not have the combination. I forgot about it till recently and want to try opening it! here are the facts

It's a dial combination lock from about 1970

NO model or serial available as it is cemented into the ground and there is nothing on the face that gives the info just a tag that says SENTRY.

what's the cheapest way to open it and be able to use it afterwards? If possible.

Answer 1

I came across a old safe myself a few years ago,I friend of mine is a locksmith and he got it open in about ten minutes..call one.....They can open any kind of safe.

Answer 2

a locksmith could open it, and put a new lock in.  or just go buy a titanium drill bit about 3/8 to 1/2 inch and drill that puppy out.  use plenty of oil or you'll break your bit.  might wanna buy 2.