Meaning of the "v"

[plastid]

When i take apart my small 21 ,close to the pivot hole is the letter "v" stamped

what dose it mean ?

 

[MRaymond]

S35VN is the steel.

 

[plastid]

Oh!

Thanks MRaymond

 

[atony]

MRaymond is correct. Don't know what I was thinking.

 

[alwayscarryaknife]

I think S = s30v.
V = s35vn as stated above.