Sorry, I did not expand on the dots issue as I thought mentioning the Scott footnote implied an expansion from the one example of dots I had previously mentioned to others.
As to serpentine die cuts, Scott lists the genuine as "10 3/4 x 11 1/4" and the CF1 as "10.8 x 11.25" to which I say good luck with that. That aside, the paper deviation along the genuine serpentine seem wider and raised up more that the counterfeit.
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Now just some general observations. Microprinting is a form of security printing to prevent the images from being unlawfully duplicated. For the
plate P1111, that is quite clear as the genuine microprinted "USPS" is readable and the counterfeit "USPS" an unreadable blob.
Now with the
P2222 plates if the ones you have are the correct company "genuine" versions of the intended P2222 printing runs, therein lies a problem. If the so-called microprinted "USPS" is a blob on the genuine product, and still a blob on a counterfeit product, then the "security feature" is not, well, a security feature.
The printing paper was changed by the manufacturer after press run of plate P1111 such that different paper was used for press run P2222. The paper or the image used for the P2222 run or a combination of both may have resulted in what should have been an unacceptable product due to the failed security feature, the microprinted USPS.
That said, you should sent one two of your booklets (and copy of the USPS receipt) to Linn's and ask the question, Why is my P2222 Scott #5344 produced with a blob as the microprinted "USPS" similar to the blob of the counterfeited P1111? Linn's should follow up. If the company or cops to a quality control issue or the USPS cops to accepting a product with a quality control issue, problem solved.
You could be credited

(or blamed

) for this discovery and go down in philatelic history.
Now I trust Linn's and would send, as well as have sent, them valuable material. They handled it well and returned in the same condition. Methinks we have beaten this matter as close to death as we can on a forum.
I miss BEP stamp production.
