Speckled wood - abnormal antenna

Speckled wood - abnormal antenna

Observation - Speckled wood - abnormal antenna. Description: Any information on cause etc of the apparent abnormal right antenna would be appreciated. The 1st photo is nearest to the true colour. The 3rd was a not very successful experiment with back lighting but it does show some detail on the antenna.

Any information on cause etc of the apparent abnormal right antenna would be appreciated. The 1st photo is nearest to the true colour. The 3rd was a not very successful experiment with back lighting but it does show some detail on the antenna.