Im new. But need help identifying a master.

[x8xViperx6x]

Hi, im new to the site, ive been reading alot on different types of lock, specially masters. Ive picked a few different types, but I got a lock from my dad, it was his basic training lock. It has Master's emblem, so I know its a Master lock, but I have no idea what type of master it is. The only other thing it say is U.S. Set on the front and on the bottom it says DG and 1hh. I searched but nothing came up, just curious. Can anyone help? Thanks.

Oh, I dont know if this helps but you have to have the key to open AND close the lock, is this a difficult lock to pick? Ive tried no luck..

[MacGnG1]

if u have pictures that would help identify it

[x8xViperx6x]

Sorry for the quick pictures hope these help, gotta go to work, thanks guys.

[x8xViperx6x]

Anyone have any ideas?

[globallockytoo]

what does knowing the model number have to do with picking it? why is it so important?

[x8xViperx6x]

... just curious. ...

Just curious is all.

[globallockytoo]

if the body is 1.75" wide it is likely a 21 series.
if the body is 2" wide it is likely a 25 series
if the body is 2" wide with a thicker shackle, it is likely a 27 series.