Question About Paper At Franklin/Washington Issues

Hello,

I noticed that there is not only the "normal" paper and the so-called "bluish" paper, but that the "normal" paper was used in different thicknesses. Because, in any case on the 10 cent (especially perf. 12, Type A-148, exists with Watermark 191 and 190) of all issues, the paper on those with watermark is so thin that a watermark cannot be seen, if you put the stamp traditionally in gasoline. Also nothing to see with Morley Bright and the old "Signoskop" from Safe. I tried some hints to do it with a scanner - without any result.
Something I have never encountered with the 1 cent, 2 cent and 3 cent issues, for example.

I still need to check if it should generally be like this from a certain value level upwards.

Since this phenomenon must have been known for decades, there should be literature about it. The catalogs (both MICHEL and Scott) write (almost) nothing about it.

Do anyone know something about this? Could give me a hint (literature, website)?

Juergen

Yikes! Have never heard of anyone using gasoline for water marking, lighter fluids ( Rononol and Zippo) or watermarking fluids like "Clairity"

The gasoline reference is probably just a translation error, judging by the substantive content of the question otherwise. I have no knowledge to impart on the question but am interested in learning from any replies.

"on the 10 cent (especially perf. 12, Type A-148, exists with Watermark 191 and 190) of all issues, the paper on those with watermark is so thin that a watermark cannot be seen"

Because of the color of the 10c stamps, the design shows through strongly when in watermark fluid and this makes seeing the watermark more difficult.

I'm with @rhett on this, very interested in how this is resolved.

With you in spirit @grisuhh62 I too have had these same issues. Which is why I come to this forum. There is almost always someone who works on the issue your having. They always provide an answer or a link to find it.

Sorry for "gasoline". It is a fault of translaton.
I tried again "Waschbenzin", and DeepL says "benzine, white spirit, petroleum ether".
I mean "purified benzine from the pharmacy". This is standard for decades here in Germany.

You have to look into the Catalog because some inks come off and this is mostly described.

Back to my question: have You made the same experience that the thickness of the paper varies? I still want to find out which issues/nominals have what kind of paper.

Juergen

Washington Franklin issues printed in either Orange or Yellow ink are notoriously difficult in finding the watermark if there is only a fraction of the watermark on the stamp. I don't know of any paper variances in the third bureau issues--I think is just that these two colors of ink are giving you that appearance when you are putting them in fluid. It is difficult to find the watermark unless there is a significant portion of the watermark present. Examine the edges closely for signs of a portion of a watermark. Also, on used issues, the cancellation can hide portions of the watermark, again if there is only a small portion to begin with. Having said the above, even larger portions of a watermark can at times be more difficult to see on single-line issues. Double-line watermarks tend to be easier to find.

Good Morning,
sorry for the late answer.
What I see in Your replies there is no qualified possibility to determine the watermark precisely on some of these stamps. Am I right???

Are there some good books about this issue? Except the "Experts Book".

Have a nice weekend

Juergen

Something that may be of assistance for you.

https://stampsmarter.org/learning/H...termark.html

Juergen, here is an image of a pane of stamps with the single-line watermark superimposed. As you can see, some stamps will have only a tiny little bit of the watermark present. And perforations and postmarks may obscure that little bit as well.