Zero. Ruger never made the P38.
The value of an NRA Special Edition 22 Ruger pistol actually depends on a couple different things. A couple of these things would be the age and condition of the pistol.
100 dollars
100-1000 USD
100-350 USD
100-400 USD
50-225
200-1000 dollars
RUGER PISTOLS ARE GOOD GUNS, ABOUT $600
50-500 USD depending on specifics
50-200
50-600 usd