What type of lock is this? Old file cabinet lock.

[arkistokaappi]

I have an old file cabinet from the 1950's. I would assume that the cabinet and the lock is made in Finland. I managed to push the lock closed while my only key was inside the cabinet and I then started to research how I could pick the lock open without having to break the whole thing.

Here's a photo of the lock. The key is kind of oval in shape, not round and not totally flat. The lock has writing "s367" on it as can be seen in the picture.

http://aijaa.com/ZXSQob

Can anyone help me in recognizing what type of lock I am dealing with and how I should approach picking it? As far as I can tell, there's no spring loaded pins inside the lock. The lock moves in and out in its hole when open and there's a spring inside the cabinet that makes the lock pop out if its open.

I'll appreciate any kind of hint and tips with this lock. Is it even doable at all for a newbie?

Cheers,
Antti

[ARF-GEF]

It remind me of Ava locks.
It's a disc lock with turning discs.

[spandexwarrior]

Yep, Ava is my guess also.

-Brian

[Squelchtone]

same thoughts here.. Abloy and AVA did some projects together afaik...

[Wizer]

Moi!
Its an AVA.
Search for it, I know this and other sites have a lot of info and pictures about it. (i wrote some of it)
Its technically a wafer lock , alltho it resembles a disc detainer lock. Actually I think its something in between.
The lock is pickable. If the front plate won´t turn at all, you would have to tension it from bottom. Makes it a little tricky.
Your keyway is the "round" one. There are round-, half round-, and flat keyways for the lock.
Even if you have no experience picking locks, I bet you could pick it in a day. This includes 2 hours of reading, 2 hours of tool making, and 2 hours of picking.
You could get lucky and be quicker ofcourse.
Onnee vaan!