Old American Lock Company A400 Combination Lost

[kss01]

https://ibb.co/MDWSRjN1
https://ibb.co/gZ6BxkzB

I have attempted to decode this lock using Master Lock law enforcement table lookup, master lock feel methodologies based on YouTube. While I have been successful with Master Lock brand using online content, I am completely stuck with this one. Is there anyone who has non-destructive experience with this type of lock? Thank you in advance!

[GWiens2001]

Try combination 02-24-36.

Gordon

[kss01]

Thank you, Gordon,

I just tried combination 02-24-36 but unfortunately was not able to open.

[GWiens2001]

Darn! Unfortunately, a lot of old code books have errors.

Gordon

[FranklyFlawless]

Is there anyone who has non-destructive experience with this type of lock? Thank you in advance!

Yes, I have provided generic decoding instructions in a separate thread and post:

• https://www.lockpicking101.com/viewtopic.php?f=9&t=57369&p=502144#p502144

For Master 1500D-like rotary combination locks, there is an even faster decoding method showcased in a two-minute YouTube video by Apache Ranch:

• https://www.youtube.com/embed/IxOwyOnnb18

Try the latter method first before slow-decoding with the former method.

[GWiens2001]

Is there anyone who has non-destructive experience with this type of lock? Thank you in advance!

Yes, I have provided generic decoding instructions in a separate thread and post:

• https://www.lockpicking101.com/viewtopic.php?f=9&t=57369&p=502144#p502144

For Master 1500D-like rotary combination locks, there is an even faster decoding method showcased in a two-minute YouTube video by Apache Ranch:

• https://www.youtube.com/embed/IxOwyOnnb18

Try the latter method first before slow-decoding with the former method.

The first method looks to be for a Gougler, which is a different lock entirely.

The second link says "This video is unavailable. Error code: 152-4"

Gordon