Auction Arms has one on its site.
If you don't have a manual, get help from a gunsmith
if it's a revolver......32 cal revolver ammo if it's a pistol......32 cal pistol ammo
How do I open an Iver johnson 32 cal pistol?
32 cal 7.65 mm browning otomatic bojho 46289
A small pistol chambered in 32 ACP
Grips, magazines, sights.
Many German firearms companies made 32 pistols.
$50-$150
Try e-gunparts.com
50-500 USD
try the gunpartscorp.com
You need a gunsmith