I think this is come from

sim — Fri, 21 Mar 2008 16:55:07 -0700

I think this is come from the calligraphic technic. Make a test, use a large ink pen and work at an angle of 45 degrees, by drawing figure 4 you will have a narrower line for the diagonal than the vertical or horizontal one.

IV

James Puckett — Fri, 21 Mar 2008 16:20:28 -0700

Why is the diagonal in the sans-serif 4 drawn noticeably narrower than the verticals and horizontals?

Typophile - IV - Comments

I think this is come from

IV