Interesting question. I already have #2 pistol and #1 Revolver covered, so I'll keep those.
Pistols
1 9mm = Browning P35 (of classic vintage)
2 .40 S&W = CZ75
3 45 acp = Ruger SR1911 Commander
4 10 mm = Glock 20
Revolvers
1 .357 magnum = Ruger KGP100 6"
2 .44 magnum = Ruger SBH Hunter 7.5"
Pistols
1 9mm = Browning P35 (of classic vintage)
2 .40 S&W = CZ75
3 45 acp = Ruger SR1911 Commander
4 10 mm = Glock 20
Revolvers
1 .357 magnum = Ruger KGP100 6"
2 .44 magnum = Ruger SBH Hunter 7.5"