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Is pressing detectable 100% of the time? 50% of the time?

Started by showcase4,

250 posts in this topic

showcase4

showcase4

Posted
Posted

...as a piggy back to the Matt Nelson Kudo's thread, this question has come up repeatedly with no clear answer.

How about if this is discussed here with no talks of right or wrong / disclosure / greed......just the science / equipment needed to detect pressing. Well.....I am no scientist, so I look to you guys for input :popcorn:

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VintageComics

VintageComics

Posted
Posted

I think pressing is detectable if done poorly or done on a poor pressing candidate.

 

If done properly on a book that is considered a good specimen it is not ever going to be detectable.

 

Let's say 50% are done properly and 50% are not.

 

Now take an accuracy detection rate of 90% on 50% of the books that are poor press jobs and you still only have a 45% accuracy at best. Heck take 100% detection capability and you are still only at 50%.

 

Now take that 50% accuracy and throw in to the mix the fact that you don't know which are pressed to start with. You have less than 50% accuracy in detecting a pressed book...and that is a best case scenario.

 

It's not enough accuracy to run a business on, that's for sure.

 

R.

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awe4one

awe4one

Posted
Posted
I think pressing is detectable if done poorly or done on a poor pressing candidate.

 

If done properly on a book that is considered a good specimen it is not ever going to be detectable.

 

Let's say 50% are done properly and 50% are not.

 

Now take an accuracy detection rate of 90% on 50% of the books that are poor press jobs and you still only have a 45% accuracy at best. Heck take 100% detection capability and you are still only at 50%.

 

Now take that 50% accuracy and throw in to the mix the fact that you don't know which are pressed to start with. You have less than 50% accuracy in detecting a pressed book...and that is a best case scenario.

 

It's not enough accuracy to run a business on, that's for sure.

 

R.

 

But what you can do is ID those copies which you can detect. That will not kill the business...and may in fact enhance good faith among the segment of collectors who do care about the practice...

 

Jim

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kc120us

kc120us

Posted
Posted
I think pressing is detectable if done poorly or done on a poor pressing candidate.

 

If done properly on a book that is considered a good specimen it is not ever going to be detectable.

 

Let's say 50% are done properly and 50% are not.

 

Now take an accuracy detection rate of 90% on 50% of the books that are poor press jobs and you still only have a 45% accuracy at best. Heck take 100% detection capability and you are still only at 50%.

 

Now take that 50% accuracy and throw in to the mix the fact that you don't know which are pressed to start with. You have less than 50% accuracy in detecting a pressed book...and that is a best case scenario.

 

It's not enough accuracy to run a business on, that's for sure.

 

R.

 

 

Exactly, Roy!! (thumbs u

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VintageComics

VintageComics

Posted
Posted
I think pressing is detectable if done poorly or done on a poor pressing candidate.

 

If done properly on a book that is considered a good specimen it is not ever going to be detectable.

 

Let's say 50% are done properly and 50% are not.

 

Now take an accuracy detection rate of 90% on 50% of the books that are poor press jobs and you still only have a 45% accuracy at best. Heck take 100% detection capability and you are still only at 50%.

 

Now take that 50% accuracy and throw in to the mix the fact that you don't know which are pressed to start with. You have less than 50% accuracy in detecting a pressed book...and that is a best case scenario.

 

It's not enough accuracy to run a business on, that's for sure.

 

R.

 

But what you can do is ID those copies which you can detect. That will not kill the business...and may in fact enhance good faith among the segment of collectors who do care about the practice...

 

Jim

 

Jim, what if you buy a book labeled unpressed when in fact it has been pressed?

 

See my point? It is inaccurate in both directions. There is no certainty. It's an educated guess at best and anyone trying to build it into a business model will get laughed to the street just like as if they were missing resto.

 

Can you imagine the threads being started?

 

"I got a pressed book past CGC"

 

(shrug)

 

R.

 

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kc120us

kc120us

Posted
Posted
I think pressing is detectable if done poorly or done on a poor pressing candidate.

 

If done properly on a book that is considered a good specimen it is not ever going to be detectable.

 

Let's say 50% are done properly and 50% are not.

 

Now take an accuracy detection rate of 90% on 50% of the books that are poor press jobs and you still only have a 45% accuracy at best. Heck take 100% detection capability and you are still only at 50%.

 

Now take that 50% accuracy and throw in to the mix the fact that you don't know which are pressed to start with. You have less than 50% accuracy in detecting a pressed book...and that is a best case scenario.

 

It's not enough accuracy to run a business on, that's for sure.

 

R.

 

But what you can do is ID those copies which you can detect. That will not kill the business...and may in fact enhance good faith among the segment of collectors who do care about the practice...

 

Jim

 

Didn't Steve B say that bad press jobs are down-graded accordingly? So if the grade accurately reflects the bad press job, why the need to ID bad press jobs?

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awe4one

awe4one

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Didn't Steve B say that bad press jobs are down-graded accordingly? So if the grade accurately reflects the bad press job, why the need to ID bad press jobs?

 

Even good press jobs can be detected if the most ideal candidate wasn't used beforehand. The imperfections are still there but harder to notice...

 

Jim

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jimjum12

jimjum12

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It's a lot easier to tell if a book has NOT been pressed. If you want some examples to go by...pick up some raw Sid's Luncheonette books DIRECTLY from Harry, they have a fat feel to them and the bead of gloss that runs down the spine has different characteristics than a pressed book. Some books from warehouse finds were stored in stacks for many years and they will have characteristics of a pressed book even though technically they have not been pressed.GOD BLESS...

 

-jimbo(a friend of jesus) (thumbs u

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VintageComics

VintageComics

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Where's FatComicMafia? :popcorn:

Sitting back laughing that showcase-4 was gullible enough to take his sh*t stirring idea and run with it.

 

Hey Dr. A-hole jerk Watson..........I've got some science for you. Why don't you take a large, wooden handled garden rake, and stick it aggressively and quickly into your rectum? ( oh, I forgot....he'd probably like that too much for it to be some form of punishment :gossip: )

 

Well now that is they way to get a thread pulled.

 

:eek:

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Flee-Marquette

Flee-Marquette

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Posted
Where's FatComicMafia? :popcorn:

Sitting back laughing that showcase-4 was gullible enough to take his sh*t stirring idea and run with it.

 

Hey Dr. A-hole jerk Watson..........I've got some science for you. Why don't you take a large, wooden handled garden rake, and stick it aggressively and quickly into your rectum? ( oh, I forgot....he'd probably like that too much for it to be some form of punishment :gossip: )

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