View Full Version : Karen.... John's ruler?
Randi
03-02-2012, 02:40 PM
I have this metal ruler that was John's. it has the name Bacher on it. On both sides it has different measures, but I have no clue what they are, except for centimeters. On one side, it has 2 P, 48 P and centimeters, and on the the other side it has 8 P, 9 P and 10 P. Do you know what the P means? I can't figure it out. :o I know that 1 inch is approx 2,5 cm.
Husky_mom
03-02-2012, 02:45 PM
if you post a pic might help.. it could be a scaling ruler
Karen
03-02-2012, 03:04 PM
P is for pica - a term used in publishing, and sometimes point - as in point size.
There are 12 points in a pica, and 6 picas in an inch.
Lady's Human
03-02-2012, 03:04 PM
Printer's ruler? In which case the odd measurements are Picas.
And I've been forum ninja'd by my sister. :p
Randi
03-02-2012, 03:13 PM
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
03-02-2012, 03:46 PM
It's used to measure the feet of Picas.....
For Pica shoes!
52866
Lady's Human
03-02-2012, 03:52 PM
Thank god we don't measure shoes in picas, some of us would need scientific notation.
Karen
03-02-2012, 04:41 PM
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
03-02-2012, 07:05 PM
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 ;)
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