Some background: In a housing co-op the safe below has been standing abandoned for decades in a basement. No-one who lives there now knows where it came from. (Legally, it belongs to the co-op now, since way back.) They used to rent out storage rooms there, so my guess is that it was once kept there and when they moved out they thought it was too much work to haul it up the stairs and just left it by the door.
It's not really a heavy duty safe, more like an archive (maybe fireproof?), but still not something you'd easily break open. The lock appears to be some kind of lever lock, possibly asymmetric. It was made sometime before 1974, and the stickers for banks and credit cards are from before 1990. (It seems it was used by some kind of business at some point.)
It's annoying and I've been asked if it's possible to get it open before hauling it off to a scrap yard. Mostly out of curiosity, I would be very surprised if it's not empty.
So that's my question: Is there any hope of picking a lock like this? Or is drilling the only way? (Although I don't have the equipment for that, and you need to know where to drill...)
Close-up:
The safe:
