#703 Can Color Be Identified By Plate Number?

It seems that these plate numbers are from the first plate layout. If Carmine Rose was the only color found on this first layout than I wont have to worry about color ID. Does anyone know it that's so?

I have a block of ten with numbers 20512 and 20485.
I tried to upload a picture but failed

stampcrow.....not 100% sure but will give it a go. This is something that
I have not thought about.
OK....the plates come from 2 layouts, without and with arrow.
1st printing w/o, second with.
After looking at the Scott Catalog....dark lake & black...valuable color variety....
they value a PB in a BLK 4...and it doesnt state arrow,
so I assume the color varietys are from the 1st printing.

Your plate strip 10 .....is from the 1st printing.
It will not have guide arrow and TOP inscription.

Thanks Kevin504. My stip of ten is two rows of five left to right with the selvage on the left. The numbers are above the third and fourth stamp. At the right edge of the fifth stamp shows half of an arrow. No other inscriptions.

Would this arrow mark the center of one pane from a larger sheet? Or the center of a full sheet only ten stamps wide?

When I'm home later today I will attempt to post pic again.

stampcrow....we are talking 2 different arrows.
You are talking a dividing line....
I am talking a arrow...
Like on the PREXY high dollar plates....some have arrows
some do not.
This arrow would be between the 2 plate #s....

Ahhhh ok I've got it now. No arrow on this one.....oops