An alternative to masking the repair could be a restoration in which the damage is incorporated into the aesthetic of the restored item and becomes artistically "better than new." This sometimes adds value as in the Japanese kintsugi repair method.
New Kintsugi DIY Repair Kit
Kintsugi - Japanese repaired pottery (DIY Repair Kit from moraapproved.com/products/humade-the-new-kintsugi-diy-repair-kit)
Kintsugi is the Japanese art of mending broken ceramics with a special lacquer containing expensive gold. The video above by The School of Life reminds us to apply the Zen philosophy behind this art to our view of ourselves and others.