Marco Lensmeter Marking Pin Springs are replacement springs for the Marco 101 Lensometer. L1-0160 Springs are part of the lens inker or lens spotting assembly in the early model LM101 Marco Lensometer and serve to spring load/cushion the 3 plastic pins when they make contact with the spectacle lens. These springs are reasonably simple to replace and do not usually necessitate or recalibration. Replacement Springs are supplied in a set of 3. Please also see commonly replaced lensmeter parts: pins
, holder, and nut.