[MICHAEL T]

I have a Interarms PPK/S in stainless that has never given me any trouble. I have been trying to find out how old it is ,no luck so far. Serial number is
so185xx Have no idea if thats a, o or a zero all numbers and letters same size.

[MGMike]

Mike: That's a zero in the s/n. The S is for stainless.
s/n 18,000+ was made around 1983-4.