Polyethylene containers are fine for acetone , or metal also, but I was trying ( perhaps poorly) to explain why the hard plastic 'cups' I showed...
I use 'artists plastic paint pots' . They come in different sizes, resealable hard plastic, flexible lids. Do not use them for acetone ( most...
More than likely you can ask the CU for a copy of your surveillance camera photo, as I am sure they had a camera watching the machine :)
Post removed! The purpose of this forum section is to discuss 'worth' , not to try and buy or sale which must be in the advertising section after...
Notice in the photo of the 55-S RPM , that the underlying S bulges almost directly points perpendicular to the side of the torch, where as in the...
If you are searching these out using an USB microscope, be sure to check them with a loupe and single light also. It is difficult with the low...
In true doubling , the numbers would be wider in total than normal, but in this case they appear to be considerably thinner on each part ( such as...
Folks, I had to remove the posts/photos , as the forum is making the effort to stop thread jumping. Start one on your subject in general...
appears to have characteristics of a cast copy. This is one of the more copied coins still. http://www.aliexpress.com/w/wholesale-fugio-cent.html
Perhaps you noticed that several posts are missing. Perhaps you also did not notice Peter's post on staying on topic or else. this is or else. No...
My thought is similar to Doug, in that I do not think it can be done well without a large number ( 100s) of experiments. I do have some setups...
It wouldn't make any difference due to the comparatively extreme strength dip, as the water wouldn't be evaporating on the the surface. Distilled...
Next time I have that scope setup, I will take some photos of a low grade coin.
Do you know what makes lustre? here are photo micrographs of the surface of a MS Peace dollar surface with lustre at approx. 350x and 800X. Notice...
Ok, I have sorta accepted that dipping silver is 'natural' rather than doctoring, but when one starts selectively 'dipping' areas of a coin, I see...
Dave, jewelry supply places ( especially Chinese) do offer round , screw top (usually) , holders for gems, to bracelet size. I think with a...
No, and I didn't mean to imply such as I would have said it. Since air- tites use the words , many actually think they are air tight. Kointains...
If I had to use either, I would pick the cointains. I have never had a reason to remove coins from them except to send to slabbing. I believe that...
Just found this 1970s DDO-001 Large date over Small date! Superb condition... No, there is no resemblance to IGWT of the real 1970S-#1 which is a...
The common ones are copper/bronze, ( middle) and goldine ( right). There is also silver, gold, aluminum and some red fiber ones that I have seen....
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