I played with the 78-S on my first date:

Post your testing feedback here, including problems and suggestions for improvement of forum features. I will look at this now and then and take action as appropriate.
Post Reply
Geseas
Posts: 336
Joined: Sun Aug 11, 2019 2:49 am
Location: West Michigan

I played with the 78-S on my first date:

Post by Geseas » Sat Nov 12, 2022 5:43 pm

Hello,
Has anyone here on this site experimented with
Linux & numismatics?

Code: Select all

  This Google Docs thing that I have been playing with here does not seem to be easily available to everyone.    Too bad; it has a lot of interesting features. 
[/u] This Linux thing is interesting also!
...On a learning curve... Thanks for your contributions.

https://docs.google.com/document/d/1AuV ... sp=sharing
Last edited by Geseas on Sun Dec 04, 2022 3:27 pm, edited 3 times in total.

User avatar
UNCLE BINGO
Posts: 118
Joined: Fri Jul 29, 2022 11:41 pm

Re: I played with my 78’s on my first date:

Post by UNCLE BINGO » Sat Nov 12, 2022 10:36 pm

Hey ,I wondered where this went . I wanted to ask you if the one sample could possibly be a flaking type of crack in the planchet . I don't know and am not savey enough to guess . I just wondered if it could almost be a lamination error kind of thing ???? any thoughts

Geseas
Posts: 336
Joined: Sun Aug 11, 2019 2:49 am
Location: West Michigan

Re: I played with my 78’s on my first date:

Post by Geseas » Sun Nov 13, 2022 1:56 am

Thanks, Bob.

I've looked at that anomaly in the 'date at the first eight' for years now and I am still not sure what it is. I would like to poke that scab-looking crust piece, circled in this photo; just to see what the surface is like underneath.
1878-S_scab_anomaly.JPG
1878-S_scab_anomaly.JPG (362.46 KiB) Viewed 217 times
The 'cracks' make it look like it would pop right off.

Dennis thought it may be a stain/residue etch of some kind, but he was looking at the first photos I took here at Vamworld 2.0; before I had a camera.

I think that microscope you've been looking for may be necessary here. :)

I will post my question in the discussion forum so everyone can see the photos and hopefully comment. Questions like this one here may not be ready for prime time. :)

User avatar
UNCLE BINGO
Posts: 118
Joined: Fri Jul 29, 2022 11:41 pm

Re: I played with my 78’s on my first date:

Post by UNCLE BINGO » Fri Nov 18, 2022 4:26 am

You should post the other picture on here the one looking up from the bottom ...... And I'm not sure if its just a brittle planchet or something else , but your new camera takes way nice pictures , Dino-lite or something else ?????? and if you poke it with a stick er i mean toothpick there is a pretty good chance it will leave a scratch

Geseas
Posts: 336
Joined: Sun Aug 11, 2019 2:49 am
Location: West Michigan

Re: I played with my 78’s on my first date:

Post by Geseas » Sat Nov 19, 2022 10:14 pm

This may be the photo:
Gcs78s around 8.JPG
Gcs78s around 8.JPG (55.2 KiB) Viewed 176 times
Here is another photo I just took. I think you can see the elevation of the anomaly much better. That P.M. scratch across both surfaces and on the surface of the '7' is a good pick-up for that raised elevation change. IMO
gcs_1878-S_Anom.JPG
gcs_1878-S_Anom.JPG (55.98 KiB) Viewed 176 times
gcs_1878-S_Anom_02.JPG
gcs_1878-S_Anom_02.JPG (71.68 KiB) Viewed 40 times
The camera I am using is an Olympus digital but the lens is a fixed 60 mm macro. It allows you lots of space between the coin and the lens. You can use that space to 'play' with the lighting.
Last edited by Geseas on Wed Nov 30, 2022 8:07 pm, edited 4 times in total.

User avatar
UNCLE BINGO
Posts: 118
Joined: Fri Jul 29, 2022 11:41 pm

Re: I played with my 78’s on my first date:

Post by UNCLE BINGO » Sun Nov 20, 2022 2:51 am

Heck man < I don't know what would cause that for sure . Might have to get one of these guys that does this for a living give it a more educated guess . No one on this forum was alive when that was minted . I was just thinking if for some reason the planchet had not been annealed properly it could have been hard and brittle . lots of pressure involved in striking a coin . Metal does strange things when subjected to those kind of forces. I am sometimes suspicious of the things dealers and even collectors may have done to them in the past as well. still have not quite figured out why some coin shops would need a B tank in the back unless there is some hanky panky going on far from public view .

User avatar
UNCLE BINGO
Posts: 118
Joined: Fri Jul 29, 2022 11:41 pm

Re: I played with my 78’s on my first date:

Post by UNCLE BINGO » Mon Nov 21, 2022 9:34 pm

HI Geseas'
I got schooled a little bit in Prime time on the finer arts of Laminated Planchets .oh well . I don't believe any of us are just born with all the knowledge encoded in our DNA regarding coin collecting. :lol:

That scope I was look at is not practical for a hobbyist. I am not sure if it would even have a large enough field of view to capture say a full coin image. Ziess has several accessories and you would think for the money any application a guy might want could be ordered . I was really more interested in the technology that looked to me like a picture could be captured all in focus even if the coin was not flat. Say you had it tilted on a slight angle to capture a clash .To have the whole thing in focus would be huge ..... Maybe one of the more esteemed Doctor type members could sneek a Morgan dollar into his lab that already has one of these and snap a screen shot . https://www.zeiss.com/metrology/product ... ISEALw_wcB

Geseas
Posts: 336
Joined: Sun Aug 11, 2019 2:49 am
Location: West Michigan

Re: I played with my 78’s on my first date:

Post by Geseas » Wed Nov 23, 2022 5:03 pm

Hey Bob,

After reading and looking at the Zeiss link you provided. I was reminded of this method called Focus Stacking. This is when you take multiple images of a coin, variating just the focal point in each; stack/or layer all these images together and form just one image.

I used it on my last photo in this post. Very easily done; even though it may sound complicated. Some cameras have it built-in.

User avatar
UNCLE BINGO
Posts: 118
Joined: Fri Jul 29, 2022 11:41 pm

Re: I played with my 78’s on my first date:

Post by UNCLE BINGO » Thu Nov 24, 2022 2:27 am

Yes the stacking thing .... that device does it in real time ,,,,, i had to google 69mm , in comes out to 2.7ish inches that is pretty much a Morgan dollar complete vertical all in focus, all the time . wow says me lol...... like I said not practical for hobbyist but might be the next best thing for a grading company or just someone trying to change the rules . :popcorn: I still have not found 10x in the accessories only like 3.5 X but I would almost guarantee based on past experience with them it would take awesome VAM plate photos......

User avatar
UNCLE BINGO
Posts: 118
Joined: Fri Jul 29, 2022 11:41 pm

Re: I played with my 78’s on my first date:

Post by UNCLE BINGO » Sun Dec 04, 2022 3:36 am

very nice pictures ! you've got mad skills!

Geseas
Posts: 336
Joined: Sun Aug 11, 2019 2:49 am
Location: West Michigan

Re: I played with my 78’s on my first date:

Post by Geseas » Mon Dec 05, 2022 6:15 pm

UNCLE BINGO wrote:
Sun Dec 04, 2022 3:36 am
very nice pictures ! you've got mad skills!
...I am going to go with, Motivated and Determined.

Thank you, Bob!

Post Reply