Original panels between the columns
These panels were put back together like the rest of the Loggetta when the bell tower collapsed beside it on July 14th 1902.
Here is a bit of history from Wikipedia:
When the lean-to stalls were removed from the sides of the bell tower in 1873–1874, the base was discovered to be in poor condition. But restoration was limited to repairing surface damage. Similarly, excavations in Saint Mark's Square in 1885 raised concerns for the state of the foundation and the stability of the structure. Yet inspection reports by engineers and architects in 1892 and 1898 were reassuring that the tower was in no danger. Ensuing restoration was sporadic and primarily involved the substitution of weathered bricks.
In July 1902, work was underway to repair the roof of the loggetta. The girder supporting the roof where it rested against the tower was removed by cutting a large fissure, roughly 40 centimetres (16 in) in height and 30 centimetres (12 in) in depth, at the base of the tower. On 7 July, it was observed that the shaft of the tower trembled as workmen hammered the new girder into place. Glass tell-tales were inserted into crevices in order to monitor the shifting of the tower. Several of these were found broken the next day.
By 12 July, a large crack had formed on the northern side of the tower, running almost the entire height of the brick shaft. More accurate plaster tell-tales were inserted into the crevices. Although a technical commission was immediately formed, it determined that there was no threat to the structure. Nevertheless, wooden barricades were erected to keep onlookers at a safe distance as pieces of mortar began to break off from the widening gap and fall to the square below. Access to the tower was prohibited, and only the bell signalling the beginning and end of the work day was to be rung in order to limit vibrations. The following day, Sunday, the customary band in Saint Mark's Square was cancelled for the same reason.
The next morning, Monday 14 July, the latest tell-tales were all discovered broken; the maximum crack that had developed since the preceding day was 0.75 centimetres (0.30 in). At 09:30 it was ordered that the square be evacuated. Stones began to fall at 9:47, and at 9:53 the entire bell tower collapsed. Subsequent investigations determined that the immediate cause of the disaster was the collapse of the access ramps located between the inner and outer shafts of the tower. Beginning at the upper levels, these fell one by one atop the others. Without their support, the outer shaft then caved in against the inner shaft. Because of this implosion and the tower's isolated position, the resulting damage was relatively limited. Apart from the loggetta, which was completely demolished, only a corner of the historical building of the Marciana Library was destroyed. The basilica itself was unharmed, although the pietra del bando, a large porphyry column from which laws used to be read, was damaged. The sole fatality was the custodian's cat. That same evening, the communal council convened in an emergency session and voted unanimously to rebuild the bell tower exactly as it was. The council also approved an initial 500,000 Lire for the reconstruction. The province of Venice followed with 200,000 Lire on 22 July. Although a few detractors of the reconstruction, including the editorialist of the Daily Express and Maurice Barrès, claimed that the square was more beautiful without the tower and that any replica would have no historical value, "dov’era e com’era" ("where it was and how it was") was the prevailing sentiment.
Original panels between the columns
These panels were put back together like the rest of the Loggetta when the bell tower collapsed beside it on July 14th 1902.
Here is a bit of history from Wikipedia:
When the lean-to stalls were removed from the sides of the bell tower in 1873–1874, the base was discovered to be in poor condition. But restoration was limited to repairing surface damage. Similarly, excavations in Saint Mark's Square in 1885 raised concerns for the state of the foundation and the stability of the structure. Yet inspection reports by engineers and architects in 1892 and 1898 were reassuring that the tower was in no danger. Ensuing restoration was sporadic and primarily involved the substitution of weathered bricks.
In July 1902, work was underway to repair the roof of the loggetta. The girder supporting the roof where it rested against the tower was removed by cutting a large fissure, roughly 40 centimetres (16 in) in height and 30 centimetres (12 in) in depth, at the base of the tower. On 7 July, it was observed that the shaft of the tower trembled as workmen hammered the new girder into place. Glass tell-tales were inserted into crevices in order to monitor the shifting of the tower. Several of these were found broken the next day.
By 12 July, a large crack had formed on the northern side of the tower, running almost the entire height of the brick shaft. More accurate plaster tell-tales were inserted into the crevices. Although a technical commission was immediately formed, it determined that there was no threat to the structure. Nevertheless, wooden barricades were erected to keep onlookers at a safe distance as pieces of mortar began to break off from the widening gap and fall to the square below. Access to the tower was prohibited, and only the bell signalling the beginning and end of the work day was to be rung in order to limit vibrations. The following day, Sunday, the customary band in Saint Mark's Square was cancelled for the same reason.
The next morning, Monday 14 July, the latest tell-tales were all discovered broken; the maximum crack that had developed since the preceding day was 0.75 centimetres (0.30 in). At 09:30 it was ordered that the square be evacuated. Stones began to fall at 9:47, and at 9:53 the entire bell tower collapsed. Subsequent investigations determined that the immediate cause of the disaster was the collapse of the access ramps located between the inner and outer shafts of the tower. Beginning at the upper levels, these fell one by one atop the others. Without their support, the outer shaft then caved in against the inner shaft. Because of this implosion and the tower's isolated position, the resulting damage was relatively limited. Apart from the loggetta, which was completely demolished, only a corner of the historical building of the Marciana Library was destroyed. The basilica itself was unharmed, although the pietra del bando, a large porphyry column from which laws used to be read, was damaged. The sole fatality was the custodian's cat. That same evening, the communal council convened in an emergency session and voted unanimously to rebuild the bell tower exactly as it was. The council also approved an initial 500,000 Lire for the reconstruction. The province of Venice followed with 200,000 Lire on 22 July. Although a few detractors of the reconstruction, including the editorialist of the Daily Express and Maurice Barrès, claimed that the square was more beautiful without the tower and that any replica would have no historical value, "dov’era e com’era" ("where it was and how it was") was the prevailing sentiment.