From Brussels to Ixelles in 1920

This cover was sent from Brussels to Ixelles, a suburb of Brussels, on 14 August 1920, just one day before the stamps were taken out of circulation.

Characteristics: 2c+2c in horizontal strip of seven plus one single Total franking = 16c Numeral 145 in circle (mailman cancel) Cancel of arrival on reverse side (?)
Estimated value: $48