Interesting Vindonissa Gladius Crossband

[Doc]

Here is a picture from the Vindonissa catalogue. I have no information only this drawing. Does anyone know anything or have any information about this particular type of gladius crossband. It is in the catalogue next to several other gladii crossbands.

The three circles appear to have a hole in the center. Are these holes for solid rivets, enamel headed rivets.......any ideas?

At first I did not consider this a crossband no matter in what context it is shown but it could be.

Any input is appreciated.

Thanks