SEM Investigation - Request for Help!

[Dietrich Maerz]

Hi Indy,

thats exactly right. We did this method with the frosting, i.e. shooting in several areas inside the frosting and around it to get a better 'picture' of the actual frosting elements by deducting them from each other. We also played a little with the kV to get some depth variation.

Multiple data is the key, I agree. And that is what the student is doint over the next 6 month.

Time will tell and that's why I'm not making any conclusion about the frosting yet.

The good thing is that the University also has FTIR capability and if push comes to shove the Prof. will start a (cost free) interdisciplinary investigation!

[Stephen Stout]

Here's the print out of the silver part. It was interesting to realize that both Prof's said clearly that one cannot make a definite statement regarding 93.5 % silver since such a quantitative statement is not possible w/o having an absolute datum. They said they would need a certified piece of 935 silver and a very clean surface of the cross void of any 'debris' to compare to each other.

However, they both said that the probability of this being 935 silver is very high, judging by the very small content of copper (which makes up the difference of 6.5%) At any rate, for me it was only important to know whether it's silver al all - which it clearly is. And a high grade at that.

Dietrich,
I am glad that my "935" helped you out. I look forward to the results of the other crosses that are postwar by S&L and helping us realize how to identify postwar crosses in the future better.

Stephen

[ChrisJ]

935

So the 935 mark was legitimate......so someone was concerned enough to get the stamp right when the frame was made. Very interesting.

Keep at it Dietrich !

[Stephen Stout]

Thanks Dietrich, I recieved my RK today in the exact condition I left it. You are an honorable man, and kept your part of the bargain. I am really glad I helped you out. BTW: Do you mind me calling you around 7ish central tonight?
Sincerely,

Stephen