A small, disc-shaped object was discovered by the Spirit micro on sol 1434:
The object appears to be highly reflective, showing up as a bright white in the pancam image taken on sol 1436 below:
This image shows the object in the orientation given to us in the pancam image:
The micro took four photographs of the object:
The difference in camera positions between these two shots,
helps us to understand the dimensional make-up of the object:
Here is a closer look at the object:
And sharpened a bit:
If this is an ancient coin, we can only speculate at the possible design
that it may have contained before being damaged:
So, what color is it now?
We can get a general idea by applying the color from the pancam image to the micro:
If it is an ancient coin, it has actually held up quite well
(at least after being brushed off by Spirit's equipment):
Here it is compared to some Roman coins - some cleaned, others not cleaned:
There are some much better coin comparisons and close-ups in the J.P. Skipper report and on the Alien Anomalies forum, linked in below.
This object was discovered by Alberto Remelli of Verona, Italy, and popularized by Joseph P. Skipper, with additional contribution and credit to Chandre Roux of the Alien Anomalies forum!
This is the J.P. Skipper original report:
Joseph P. Skipper had done a previous report on a disc-shaped object that also looks like a coin.
This one was discovered by Edward Findley. The rover imaged this on sol 1220.
Here are some images of it:
Image credit: NASA/JPL/