I was going through my safe and taking pictures of my Lugers. Here's my American Eagle. It's a later serial number: no proof marks, wide grip safety. Notice the last three digits of the serial number are on the larger parts.
<a href="http://forums.lugerforum.com/lfupload/ae1.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/ae1.jpg" width="400" alt="Click for fullsize image" /></a> <a href="http://forums.lugerforum.com/lfupload/ae2.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/ae2.jpg" width="400" alt="Click for fullsize image" /></a> <a href="http://forums.lugerforum.com/lfupload/ae3.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/ae3.jpg" width="400" alt="Click for fullsize image" /></a> <a href="http://forums.lugerforum.com/lfupload/ae4.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/ae4.jpg" width="400" alt="Click for fullsize image" /></a> <a href="http://forums.lugerforum.com/lfupload/ae5.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/ae5.jpg" width="400" alt="Click for fullsize image" /></a> <a href="http://forums.lugerforum.com/lfupload/ae6.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/ae6.jpg" width="400" alt="Click for fullsize image" /></a> <a href="http://forums.lugerforum.com/lfupload/ae7.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/ae7.jpg" width="400" alt="Click for fullsize image" /></a>