Scott 706 With Vertical Line In Block Of 4- Need Help

Hello.
Does anyone know what is the Scott Cat. plate number with a vertical line as seen in this photograph? Personally, I have only seen without line with plate numbers, so I am not sure if this is uncommon with this specific block of 4. I read there were only 8 plate numbers sent to press. There is no information about a line pair in Scott's. Only sub category states for missing red cross under cat. for 706.
Any information would be appreciated. Thank you in advance.

This is Scott #702 (not 706)

Being a two color process, there was a separate plate for each color; there were 460 plate combinations.

The line is not uncommon, but makes the block collectable. These are typically called 'center horizontal line block' (not line pair).
Don

Edit: Dialysis/chemo brain moment fixed

Yes.. correct.. it is a 702.. I don't know why I said 706.. must have been on my mind looking earlier with Washington Bicentennials.
Since these are collectible, what would be the average market value for this specific full gum, unhinged, unused block of 4? Normally, without line, one stamp average 20 cent, unless cross missing which is rare.

I see an horizontal line

you right too..it is horizontal..sorry..

you right too..it is horizontal..sorry..can anyone inform me what is the average value for this block of 4?

8 cents would not be far from the mark

This is called an arrow block; a centerline block has lines running both horizontally and vertically through the middle of the block. A centerline block has the dead center positions of the sheet, so there would be no sheet margins/selvage also.

Value for NH would be about US$1.50, perhaps less. The stamp centering is not very good. Though off-center is typical for this time period, there are still many #702s available; collectors prefer and can get better centered examples.

Thank you all for your responses. Very helpful for information if I run across other block of 4's 702's ( Red Cross Issues)