The Colt Model 1903 Pocket Pistol was made in 32 and 38 calibers. The 32 caliber has a 3 3/4"or 4" barrel, charcoal blue or nickel finish with hard rubber grips. It is hammerless with a slide lock and grip safety. They were made from 1903 until 1946. Your gun was made in 1930 and is a Type 4 with a magazine safety. The Blue Book values are:
Add 20% for nickel finish (mostly w/pearl grips).Add 30% with original box and instructions.
Add 20% to 30% to the Blue Book values for retail prices.
I hope this helps you,