TRIVIA: The Three Reverses of the 1878 Morgan Dollars Minted at Philadelphia

If you don't quite understand the differences between the three reverse designs on the 1878 Peace Dollar, maybe this will help:
　
1878 REVERSE DESIGN 1:
　
8 Tail Feathers
Parallel Edges on the Arrow Feathers (PAF)
"A" in AMERICA Touches Wing
Beak is Straight
Concaved Eagle's Breast
Narrow Rim
(coinpage.com photo)
　
http://www.coinpage.com/coin-image-3912.html
　
Part way through 1878 a decision was made to alter the reverse design reducing the number of tail feathers to seven. Several thousands of 1878 Morgan Dollars were not yet released for circulation so another decision was made. The mint overstruck thousands of the 8 tail feather Morgans with a 7 tail feather image so everything identifying Design 1 is true for the 7 over 8 tail feathers Morgan Dollar reverse design.
　
1878 7 OVER 8 TAIL FEATHERS DESIGN 1:
　
(coinpage.com photo)
　
http://www.coinpage.com/coin-image-1333.html
　
Reverse Design 1 is also on the first few thousand 7 tail feather Morgan Dollars produced at Philadelphia.
　
Later on in 1878 reverse Design 2 was created. Everything is the same as Design 1 except the eagle now has a crooked beak as it should have.
　
(coinpage.com photo)
　
http://www.coinpage.com/coin-image-2779.html
　
Still later Design 3 was created (aka 1879 reverse). The changes include the following:
　
7 Tail Feathers
Tapered (slanted) Arrow Feathers (SAF)
Rounded (convexed) Eagle's Breast
"A" in AMERICA Doesn't Touch Wing
Wide Rim
　
I couldn't find a photo of reverse Design 3 on an 1878 Morgan Dollar so, in order for you to see Design 3, here's a photo of the reverse of an 1879 Morgan Dollar (coinpage photo):
　
http://www.coinpage.com/coin-image-3652.html
　
One other thing you should know. Morgan exercized his Artistic License on the Dollar's reverse by designing the motto using capital letters only on "I" and "G" of "In God we trust."
　
Did you know?
　
Clinker