721 Line Pair Gripper Crack?

found this line pair and read that a griper crack occurs only on the curved plates and are found in the row of stamps adjoining the plate joint and that they are colored lines paralled to the joint line. Is this an example of a gripper crack? Thanks for any guidance on this variety.
Respectfully,
Richard

Yes, it looks like a gripper crack and it is a beaut at that!
Plate cracks can occur anywhere on the plate, but gripper cracks are a result of the 'gripper', the device that holds the plate down on the roller. These are found, as colonelrklink mentions, at the ends of the plate, next to the joint line.

Peter

Nice! Thanks for posting this example.

someone needs a lesson in plate mounting. I worked and still work as a printer (used to a 12 color press) but now work in the office. the cylinder is mounted with a special sticky foam material. the plate then is mounted on this sticky tape so it holds to the cylinder. when working with a round cylinder there is a seam of the sticky tape. when mounting the plate you also line up the seam in a GAP. the space between the stamps faces would have been ideal. this way you do not get lift and lay down to much ink and make very small lines like you have just shown.