T206 Marquard "White Lines"

[Abravefan11]

Sorry I've become such a killjoy around this place.

I'll see if I can come up with a few more scans to further muddy the subject.

[B O'Brien]

Scot,
That is roughly the same price you quoted me on the SC 350/460 Factory 25 Willis when I needed to finish the HOF backs line!
One back, one player = me screwed

Just kidding, as I had way more fun breaking up the Sweet Caps and Piedmonts than I did building them.

I hope all is well and I will be in touch soon, as I think you have something I need for the rebuild that is going much slower this time.

Thanks for the look at another EPDG Rube,
Bob

[teetwoohsix]

Bob- I think I have your old Marquard SC 150,,,,,,,from your first post. Don't worry, I take very good care of him (my scanner sucks-sorry)

Clayton

Also- no lines on this one...

[steve B]

All this about the white lines and nobody commented that the Old Mill is different from all the others shown?

The dark blue comes lower, the dark green higher, and the reddish stripe in the sky is a lot wider.

I think all 3 of these would be different positions on the plate/stone. Another piece of the puzzle to figure out the sheet layouts.

Steve B

[Abravefan11]

Steve -

The Marquard card in question is very similar to the color combinations of Ritchey. The "Dove" in the sky that shows on some Ritchey's but not on others is the result of an improvement in the application or quality of ink in the 350 series printing. A person with more understanding of the printing process could possibly speak to the exact cause of the difference.

Both cards image quality improved during the 350 series.

I don't think this is the cause of the white lines on the Marquard though.

[T206Collector]

[sb1]

I have to disagree with this statement. The image quality on each and every card of the 150 series is far superior in color and sharpness than the 350 series.

By the time the massive 350 series was printed the stones were quite worn and reworked a bit I suspect.
As to the white lines and the doves, they were probably the results of effacing the stones.

Originally Posted by Abravefan11

Steve -

The Marquard card in question is very similar to the color combinations of Ritchey. The "Dove" in the sky that shows on some Ritchey's but not on others is the result of an improvement in the application or quality of ink in the 350 series printing. A person with more understanding of the printing process could possibly speak to the exact cause of the difference.

Both cards image quality improved during the 350 series.

I don't think this is the cause of the white lines on the Marquard though.

[Abravefan11]

Originally Posted by sb1

I have to disagree with this statement. The image quality on each and every card of the 150 series is far superior in color and sharpness than the 350 series.

Hi Scott,

I wouldn't make the statement that the image quality improved on each and every card. I have Ritchey 150 cards that the quality is much nicer than 350 examples I have. I would say on the whole that the quality was improved during the 350 run but certainly not every card.

*Also the image comparison I posted is of scans I had with the greatest contrast to better show the difference in quality. Many cards fall between these examples.

[steve B]

Wikipedia has a good explanation of how lithography works.
http://en.wikipedia.org/wiki/Lithography

The effects shown with the dark blue color could happen from a dry plate, but that usually leaves traces on the rest of the item being printed. And the dove like area would be inconsistent or missing on many 350 cards.

The plate or stone being worn wouldn't cause something like that, as the ink accepting area would shrink or become less well defined within the same area.

If you accept the theory of a 150, a 150-350, and a 350 group of printings then there must be at least 3 different plates or stones used. Adding or changing the image on the plate is difficult for anything but fixing a small scratch. It could be done on a stone, I'm not sure it could be done on a modern plate. I think the white lines are a scratch on the plate/stone or a spot that didn't get the ink accepting coating.

Steve B