Originally Posted by DCWilson

All one-line K-38s known to me have serial numbers below K25000. Any K-38s with higher serial numbers appear to be four-liners.

Distribution by serial number ranges:

K4500-K5000: eleven known (four LERK, five non-LERK, two unreported)

K22xxx: two known (both non-LERK)

K23xxx: fifteen known (one LERK, all others non-LERK)

K24xxx: three known (all non-LERK)

Documents show that the first K-38 production run was for 350 units; those are probably all included in the K-plus-four digit serial numbers. I suspect most of the K22xxx through K24xxx range numbers will be K-38s, but almost certainly not all of them. I don't see how total one-line K-38 production can exceed 2500, and it may be somewhat less -- even as little as 1500, but that feels to me as though it is veering into improbability.

Bob, I don't know if I logged your two fine revolvers when they were under other ownership. Would you be willing to provide me with their serial numbers in a PM if you don't want to broadcast them in the clear? I will revise my table above if they are new to my register.

Like you, I have stumbled into two K-38 one-liners over the years and love them both. My avatar over there shows the one-line rollmark on a 1947 K-22.