What do you consider a "handgun"?

[kalibear45]

Walther PPK

 

[Stevie-Ray]

A 1911 with illuminated barrel, ala Ichiro Nagata.

 

[cratz2]

1911, baby!

 

[Black Snowman]

Depends entirely on the conotation you're trying to portray but I'll put in my vote.
Percussion cap muzzle loader.
Some of those old things are true works of art. Which is why I don't own one Too pretty and expensive AND impractical to shoot.