Vintage
Looks to be an older antique model.
Note in the 1938 catalog this model has quick reading figures - not featured on this piece.
In the older catalogs - no quick reading figures - matches this piece
Therefore it looks like they added quick reading figures to model 303 sometimes in the 1930s and this piece made prior to this.
Starrett was making these safari back as the 1890s.
Starrett
303
Tempered Ruler
2"
no. 4 graduations = 8ths 16ths / 32nds 64ths
+ end graduation 32nds