Please Help.. Perf. 11

Hi.. This stamp is perf. 11x11, only on 3 sides.. it measures 19.5x22- and I cant place it...any ideas?

My guess would be Scott #554 from booklet pane 554c.

i would have guessed that too..but it definatly reaches 19.5 in ist width

I have 4 copies of #499 with straight edges on one side or another that measure 19.5mm. Like you, I questioned what they could be since they did not measure 18½-19mm as the catalogue etc. stated. I posted on another site questioning this and had a couple of experts that do expertizing for a couple of the expertizing services state that booklet pane stamps were slightly wider that sheet stamps, which was news to me. If thats the case on a consistet basis(?) then what you may have is a #554c, booklet pane single. If not that, I don't know what else it could be. Perhaps someone else can add some more information on the topic.

In all my years of collecting, I have never come across booklet panes having stamps that were slightly wider than the regular sheet stamps. Does anyone have an explanation for this? I thought the only differences in size was the difference between flat plate and rotary press printings.

In my experience, flat plate booklets CAN be slightly wider than sheet stamps. Not as wide as rotary press, but enough to be confusing.

rohmpy, I know your a W/F guy, if you want you can check the post I did earlier about measurements for #499. Titled: "question about Scott #499" that I posted 12/12/13---you might find it interesting too.

I have this #554c single, but it measures 19.25mm horizontally. #595 measures 19.75mm horizontally. Though I'm no real expert, my guess is that your stamp is a 554c single. I have no idea why its design is that wide though...

Hi, neither do I.. but from a bit more searching and reading some of the comments I can see that I am not the only one with this Problem.. who knows, maybe in a year or 2 we might get another scott listing?

I have also encountered booklet singles of the 1c Franklin and 2c Washington perf 11 that measure 19.5mm x 22mm. I suspect they are probably just flat plate booklet singles. Still not positive though.

I think that the booklet stamps have a horizontal paper grain and that sheet stamps have a vertical paper grain. On wet paper printing, it usually results in the paper shrinking across the grain and expanding along the grain. Thus, flat plate booklet stamps can appear to be slightly wider than flat plate sheet stamps and flat plate sheet stamps can appear to be slightly taller than flat plate booklet stamps.