How To Get Obv. And REV In The Same Pic?

Me too, love to know. I don't have much time to experiment any more.

I normally take two photos of the obverse and reverse, leaving a blank area to the left or right of the coin. I use Microsoft Picture-It and first open one photo and crop it so it is just a square around the actual coin: I close the picture and save the changes. I then open the second photo, go to "Insert" and select "Picture" and then "from My Computer". I select the cropped photo and paste it alongside the one I have open. I then go to 'File' and select 'Flatten all objects', which embeds the new cut-out in the photo. Then, if necessary, I will adjust the colour or contrast or crop the photo again before saving it.

Thanks! Is MS Picture-It included with newer version of Windows? That sounds pretty nice.
If I had a real tough coin, say a BU 1945 Mercury dime with FSB (I wish), how could I get single image of both obverse and reverse without editing or merging 2 separate images?

You don't. Postprocessing is how you do that. And don't do it unless you're just bragging. Putting both faces into one image halves the size of the coin, rendering it less gradable.

Oh, yeah, it's a nice effect and I love to see coins presented that way. But consider, you need a bare minimum of about 650 pixels of coin diameter - and that crystal clear & sharp - for accurate grading. That makes your image a minimum of 1300 pixels wide. Add the forum itself onto the screen, and you've got something pretty wide.

Doesn't bother me - my screen resolution is 2560x1440. But most people don't have that much width, so the forum software will force-downsize your image to fit the user's browser. Kinda defeats the purpose.

I recommend Paint.NET - a free program - for lightweight image editing. It's MUCH better than the included paint. The website is http://www.getpaint.net/ (leave the poor people at paint.net alone)

The workflow is something like this:

Open the image (right click, open with)
Select the ellipse tool, click at a point at the intersection of the left and top edge, drag to include the bottom/right of the coin.
Click on "Move Selection" (or press M) then Zoom in and adjust the left and top edge markers to include the entire coin. Fix up the bottom and right ones if necessary.
Click crop.

Now you can adjust the image size (canvas) (Cntl-Shift-R) to allow space for your logo, etc. and then resize (Cntl-R) if necessary.

The term I was looking for was double exposures. But it seems that it's probably best to do it after in another program.

Great info! Thanks so much everyone!