Weak H Grill (139) Vs. Left Outline Of Early State I Grill (139A) ?

Hello,

I like it when an old stamp has a hinge and - as in this case - there is a grill hidden there for many years that you can uncover. Now it's difficult to identify as there are only few grill points visible. The left column seems complete, a very faint second columns is visible, but not complete. The first row is a bit visible to continue to the right. When you look at the stamp directly, and also in the third picture here, you can divine a rectangle about 8 x 9mm.

I count 11-12 points vertical with perhaps the first row an incomplete grill point.

So from what I can see it's an I grill, but the question is: how can I decide that it's not a faint H grill? Is it just the characteristics I mentioned above?

I read this post some time ago by Clark which shows a similar stamp:
https://goscf.com/t/55890#489110


Thank you for your opinions about this interesting stamp.
stamperix

Well, I agree that it is a grill. As for which type, in cases such as this I follow the advise of one of my mentors ( and Occam's Razor). It is the most common grill for the issue.

Yes, I also like easy decisions, but also for them you need some information. It's more likely to be an H grill, that's clear, and so I wonder which characteristics of the grill could lead to an H grill instead of the I grill which imposes itself at first sight because of the left column and its grill points number as well as the weak rectangle form.

I made two other photos which show the grill points better and also the rectangle. There are two horizontal lines going to the right at the first and the last grill point of the complete column.

So is this happening for H grills as well, or can we derive anything concerning the grill point properties or the paper grain?

In the meantime I read a bit about this at Stevenson and Burns and I am still not sure about this grill. If I compare to the one Clark showed in the link above, my grill has not these tiny grill points typical for early I grills. But on the other hand it shows a grill column at the left end with a partial grill point at the top. Some points of the secons column are visible. But what is most interesting to me, is the general size of the grill. You can see no grill points above or below the grill column, and somehow you can divine the rectangle of about 8x9mm. This is hard to get on photos, but the last one above shows it a little.

The truncated pyramid could lead to a late H grill or late I grill. So is for one of these two this left column a typical characteristic?