Scientific methods

[Spunjer]

Hi gav,
Photoshop can do wonders. Sometimes i would see stuff after taking pics on higher megapixels, then enhancing the picture further...

[Gavin Nugent]

Originally Posted by Spunjer

Hi gav,
Photoshop can do wonders. Sometimes i would see stuff after taking pics on higher megapixels, then enhancing the picture further...

Thanks Ron. I have done this with good results thus far as the residue showed as a nice blue colour on the steel, I was then able to print the image and line draw on the print out from what I viewed on the screen...I will continue to try this method but I fear there are just a few key sections on the edges of the cartouches that I just can't get clear enough....maybe a lot easier if I had an A3 printer rather than the A4 one that everyone seems to have at home.

Gav

[mrwizard]

It is a bit tedious but examining the surface with a simple microscope might help on the unreadable sections. I'm sure if you ask politely, someone from the university of Queensland will help you with access to the right equipment. I would start asking a mineralogy or materials science department.

Best Regards,
Thilo

[Gavin Nugent]

Originally Posted by mrwizard

It is a bit tedious but examining the surface with a simple microscope might help on the unreadable sections. I'm sure if you ask politely, someone from the university of Queensland will help you with access to the right equipment. I would start asking a mineralogy or materials science department.

Best Regards,
Thilo

Hi Thilo, thank you for a great suggestion!
I recently sold an item to a chap in the Physics dept at UQ...I hope he is receptive to the idea and can offer direction.

I'll let you know if I have success with this method.

Gav

[fearn]

Hi Gav,

Talc isn't a bad idea. Check out the techniques for seeing the images on old gravestones and petroglyphs. Basically, use a non-staining fine powder that has a color in contrast to the surface, to fill in the grooves and make them more evident.

Alternatively, light the piece from a low angle, along the blade (like the setting sun), so that the shadows from any grooves or ridges stand out.

So far as the microscope goes, you want a dissecting microscope, not a compound microscope. If you can't get anything from the physicist, you can often buy one surplus for well under a thousand dollars. Or if that's too much, there are number of simple magnifiers (for jewelers, fishing fly makers and other hobbyists) which would work too.

Best,

F

[katana]

Hi Gav,
I recently purchased a USB Digital Microscope....with a mag of up to 200x . It is fantastic, allows you to take snap shots via the PC. I highly recommend one...and they are relatively cheap (around £60 ) When I get a chance I will add some images created with the microscope so that you can see the results

I do not think talc would help much, wouldn't it just highlight the cross hatching to which the gold is applied or am I mistaken

Kind Regards David

[fearn]

Originally Posted by katana

Hi Gav,
I recently purchased a USB Digital Microscope....with a mag of up to 200x . It is fantastic, allows you to take snap shots via the PC. I highly recommend one...and they are relatively cheap (around £60 ) When I get a chance I will add some images created with the microscope so that you can see the results

Hi David,

Which brand of microscope? There are a bunch out there, and some seem to have gotten bad reviews.

F

[katana]

Hi Gav,
here are some quick images including a blade, stitching and woven reed pattern (reeding less than 0.75 mm in width) on an african scabbard, a British 50p piece, human hair and a metal tape measure (each graduation = 1mm)

I am suitably impressed

Regards David

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