Question About WWI War Savings Stamp

I have just gotten into stamp collecting, specifically the WWI and WWII war savings stamps and their cards and certificates. I ran into this War Savings Certificate with one stamp attached. It looks like it might be a WS3 but I cannot tell if the perforations are just bad or if this is rouletted. Any advice would be welcome. Thanks.

The Scott $5 green comes perforated (WS 2) and rouletted (WS 3). Your stamp looks like it might be rouletted, but it is difficult to tell from your scan. The rouletted version is much scarcer than the perforated version.

Scan with the stamp on a black or dark background and repost. A higher dpi might also help.

I have tried to increase the resolution on the scan, but the file size limits for posting are limiting me. Also the stamp is affixed to a certificate so I can't adjust the background to make the edges stand out.

I hope this effort is a little more useful. Thanks for the opinions so far.

https://www.stampcommunity.org/image-optimizer/ <== get unlimited here

Hint: use the [Sharpen] feature after, as above, using a) a scanner, at b) high resolution, against c) a dark background.

Cheers,

/s/ ikeyPikey

this is the image at 200dpi using the file optimizer program. Much larger so I hope this does the trick. Again, this is affixed to a certificate so I can't do anything about the background.

A closeup up the perfs can be a partial scan, let's say 1/2 inch by 2 inches along the left edge.

As the original poster mentions, his stamp is attached to the certificate booklet. Probably like this tri-fold one, which has the perforated version of the stamp adhered.

Edge closeup. This image isn't as good. I guess my image processing skills are not up to standard yet. Don't know if it is the result of the image optimizer or my scanner.

No one gave an answer, so I will. This is a WS3. Perforation make round holes between the bits of paper remaining to hold the stamps together. Rouletting is really just cutting a slice-line into the paper. The may be some open space caused by the slice but the edges of the slices are straight between the bits of paper left to hold the stamps together. The roulette on WS3 stamps is called a size 7.

You have a WS3 on document which catalogs at $700, far more than the perforated stamp which lists at $40 on document. You have a nice item.

No one gave an answer, so I will for the benefit of later readers. [The OP has not been on the SCF since 9-2020.]

This is a WS3. Perforation make round holes between the bits of paper remaining to hold the stamps together. Rouletting is really just cutting a slice-line into the paper. The may be some open space caused by the slice but the edges of the slices are straight between the bits of paper left to hold the stamps together. The roulette on WS3 stamps is called a size 7.

You have a WS3 on document which catalogs at $700, far more than the perforated stamp which lists at $40 on document. You have a nice item.