banknoteguy
Member 
Posts: 323
What I collect: 19th Century US, High denomination US (> $1), 19th century covers US, Indian Feudatory States and most recently I acquired a BigBlue [with about 5,000 stamps] and pristine pages.
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Post by banknoteguy on Sept 5, 2021 15:11:27 GMT
An example of a banknote issue with a dropped tool mark -- small red line at upper left points to the mark.
Anyone ever seen other examples?
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WERT
Departed
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Posts: 1,062
What I collect: Canada and Provinces
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Post by WERT on Sept 5, 2021 15:28:36 GMT
I also see what could be a Doctor {Ductor} blade flaw.. Robert
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JeffS
Member
Posts: 2,838
What I collect: Oranges Philately, US Slogan Cancels, Cape of Good Hope Triangulars, and Texas poster stamps and cinderellas
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Post by JeffS on Sept 5, 2021 15:32:02 GMT
WERT = I believe "Doctor Blade" is a reference to twentieth century rotary press printing, thus wouldn't apply to this stamp. 
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WERT
Departed
Rest in Peace
Posts: 1,062
What I collect: Canada and Provinces
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Post by WERT on Sept 5, 2021 15:47:54 GMT
True jeffs
But what was used on the flat plate to clean/wipe the plate before the ink was applied and the next sheet was printed..??
Robert
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JeffS
Member
Posts: 2,838
What I collect: Oranges Philately, US Slogan Cancels, Cape of Good Hope Triangulars, and Texas poster stamps and cinderellas
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Post by JeffS on Sept 5, 2021 15:52:06 GMT
WERT - Likely a rag and solvent, by hand. The mentioned line looks more like a plate scratch, a nice find in my eye.
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banknoteguy
Member
Posts: 323
What I collect: 19th Century US, High denomination US (> $1), 19th century covers US, Indian Feudatory States and most recently I acquired a BigBlue [with about 5,000 stamps] and pristine pages.
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Post by banknoteguy on Sept 5, 2021 16:30:37 GMT
I had missed that but it should have been obvious compared to the tool mark!
Could it have been an errant/faint ruling line intended to not show?
Marked on the copy below:
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JeffS
Member
Posts: 2,838
What I collect: Oranges Philately, US Slogan Cancels, Cape of Good Hope Triangulars, and Texas poster stamps and cinderellas
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Post by JeffS on Sept 5, 2021 17:01:40 GMT
I know nothing about the mechanics of laying down the transfer roller for this series. It could be. But I discounted that as the line looks to be skewed outward at the top not precisely parallel to the stamp image. There's gotta be a reference for this.
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