Amex Icon - ICNS Format.

512 x 512
Amex icon 256x256Download
256 x 256
Amex icon 256x256Download
128 x 128
Amex icon 128x128Download

64 x 64
Amex icon 64x64Download
48 x 48
Amex icon 48x48Download
32 x 32
Amex icon 32x32Download
16 x 16
Amex icon 16x16Download

More icons from the Credits Cards icon set: