Need help identifying a keyway

[Chronos]

I have an old schlage key in knob lock and I was wondering if anyone could give me a few options as to what keyway it might be. By old I mean were talking 20+ years old. Thanks!

[Chrispy]

A picture would help a lot.

[Chucklz]

Pin tumbler?
If so, a picture of a key would also be worth a few thousand words.

[keysman]

If it is a pin tumbler Schalge you can pull the knob off, and remove the tail piece.
On the back of the plug wil be a small letter/ letters or numbers stamped. That is the key way.

If no leter/number stamped it is most likely a "C" keyway.

If it is a wafer lock ( really old!)

There are several keyways and the only way to find out is put a blank key in and see if it fits. there are only 3 or 4 keyways for the schlage wafer

[raimundo]

Since its in a knob, I bet its one of the old schlage wafer locks. there are I think two keyways for these, but no reason to find the key blanks and make a key, just throw the lock away and replace it, it' junk, made as junk.

[keysman]

[quote="raimundo"]but no reason to find the key blanks and make a key, just throw the lock away and replace it, it' junk, made as junk.[/quote]

Actually they were VERY well made by todays standards, the lock it self is not very secure against picking , but the latch, body and internal parts are very stong ..that is why many of them are still in service after 50 + years.
I can't imagine a todays kw or look alike import being on a door for 50 years. or even 20 for that matter.
No I wouldn't put one on my front door but I might consider an interior door such as a bedroom or bathroom where security is not a real issue.