Can Any On Explain Me What Is Going On With Perfs

Its seems to me that perf impressoin is different size then perfs, is it usual to have hole not punched out and different size perforation impressions?

A perforation mis-registration and I think it may be called a blind perf. I'm sure someone will chime in and say for certain. Neat though.

I'm sure someone well versed in the art of printing will chime in with the real reason, but I don't mind taking a guess.

The "chads" stretched as they were being punched out of the paper. Perhaps because the perf punches were getting a bit dull?

Brian

Just trying to be thought provoking here. Blind perfs are no mystery, sometimes the punches broke. I had a thought that the other impressions could be a botched private perf job, but my knowledge of that is limited and I abandoned it. ...Could they be like crop circles?


-IBFS

It looks like the paper from the holes that were punched made an indentation in the stamp paper. They are all orientated to the same direction. What is odd to me is they were made on a rotary press. There was some high pressure to make the indentation like that. I thought the paper was gummed before perforations were made.

If you stare at it long enough it simply looks as if it's just the paper from where holes were punched that's still clinging on. I've heard them called "Chads" before.

at first I thought they was indentations but the more I look at it I think they are just the punched out scraps clinging fast. This is pretty common.

The perf pins were dull causing a hanging "chad". This is a Scott 603 which was perforated on the one-way rotary perforator with the stamps being in a continuous web. The paper goes through the perforator and through drive rollers (similar to a old washing macine wringer). The pressure of the rollers caused the "chads" to indent into the paper.

The paper would have travelled through the rollers from the left to the right. You can see where the right hand side of the perf hole is tear drop shaped from the attache "chad" pulling where it was attached.

But why were the "pressed in" chads larger in size than the perfed holes? And why are they perfectly aligned vertically?

-IBFS

I think it's an optical illusion as they couldn't be any larger than the actual hole unless they was stretched or something but I don't believe that's the case.

1 I agree with I love Stamps and 2 I agree with with Russ. To me the one on the upper left hand corner and the one in the middle looks like a blind perf, but the rest look like a hanging chad, but hen again I'm a newby stamper

1 I agree with I love Stamps and 2 I agree with with Russ. To me the one on the upper left hand corner and the one in the middle looks like a blind perf, but the rest look like a hanging chad, but hen again I'm a newby stamper

As I stated in my earlier post ... the chads are larger because they are streched. This happened because the perf punches were dull.

For rotary press coils, a Stickney rotating bar (coil) perforator was used which did not have rotary perforating wheels on it. It was similar to the Stickney bar and wheel perforator for perforating rotary press sheet and booklet stamps, but it did not have the perforating wheels on it since only one direction (horizontal or vertical) perforations were needed for coils.