Master 1500 frustration...

[innerpicked]

I recently acquired 3 master 1500s. I managed to open one quickly using Oldfast's method. These other 2 have been hours of frustration for me, shimming and manipulation are failing me. Could someone look up these serials for me?
The ser of the first lock is:
510471
3512

The second lock
48123m

Thanks for the help.

[Oldfast]

The second lock
48123m

I'm almost certain this is NOT correct... but it's worth a shot

32 - 2 - 24

[10ringo10]

Give this ago 2-28-22 your second code its a fail Buddy

[innerpicked]

Thanks Oldfast and Ringo! The 2-28-22 code worked , as expected the the 32-2-24 did not. Well now there is only one lock to annoy me...