SMC Pentax-M 1:3.5 135mm portrait lens

SMC Pentax-M 1:3.5 135mm portrait lens
Product description

 SMC Pentax-M 1:3.5 135mm portrait lens

MS prosvetvlenie, built-in lens hood,
burnished skirt (jumping).
To mount (PENTAX)
The lens number 6091509
Condition - excellent
Set: in the photo (another cover)
Efficiency: defective