hello Inkman,

The stamp on the left without triangles is Scott#219D 2c lake. The stamp on the right looks like it does indeed have triangles of type III, in which the horizontal lines do not cross the double lines of the triangle. Therefore it is either Scott #252 2c carmine, type III if it is unwatermarked, or Scott #267 2c carmine, type III if it has a double line watermark.