AKML rail after hardening.AKML rail front and back.
AKML rail with serial numbers Polish version (before hardening).AKML rail Polish version (before hardening).AKML rails Polish version (black oxidized).
Early AKML rail for installing NSP-2. This rail was mounted in Poland only during 1968-1969.
RPKN/RPKSN rail after hardeningRPKN/RPKSN rail front and back.
AKMSL rails Russian version without serial number (after hardening).AKMSL rail front and back.AKMSL rail with serial numbers Polish version (black oxidized)
