Karen.... John's ruler?

[Lady's Human]

Printer's ruler? In which case the odd measurements are Picas.

And I've been forum ninja'd by my sister.

[Randi]

I thought you'd know Karen, thank you! I have heard picas mentioned, but never really thought about it - it's still confusing, though. It seems that 60 on the 2P line is equivalent to 15 on the 48P line - and 40 on the 10P line is the same as 50 on the 8P line. Hmm! I'll figure it out tomorrow, when I'm not sleepy.

Btw, John used to be a draftsman (mechanical engineer) before getting into photography and later illustrations. So it must be from that period.

[RICHARD]

It's used to measure the feet of Picas.....

For Pica shoes!

[Lady's Human]

Thank god we don't measure shoes in picas, some of us would need scientific notation.

[Karen]

Thank god we don't measure shoes in picas, some of us would need scientific notation.

Oh, like anyone could measure feet in our family without eye rolling and double-checking, no matter what scale they use. Not exactly a normal foot amongst us all!

[cassiesmom]

Thank god we don't measure shoes in picas, some of us would need scientific notation.

If that were the case, then my family's feet would come under the woodworker's rule- Measure twice, cut once