45241-425-013 Cover CompL caliper(&45119-425-003)250 Tokico.

45241-425-013 Cover Comp L caliper & 45119-425-003 Cover indicator, CB250NA From Serial 2112739....NB/NDB/NC

Updated 16/04/2021 ( after much head scratching & confusion)
(Note 45242-425-003 is similar, to the earlier cover, and indeed uses the earlier indicator window. But the spring plate is 180 degrees different, as the slope of the spring should face the disc, when it is rotating towards it in normal use deleted as only a correct description for the  calipers of certain models of CB650 & CB750). So the r/h -425-  cover is also the l/h 45241-413-003 for the CB 250 N & NA until 2112738 (checked without taking one out the original old style sealed Honda NOS bag, spring direction is the same, so faces the  other way, when fitted as a left).