SEDI WPMP ext ver1 (first version of semantical division of Western Part Main Part Exterior) is a previous version of SEDI WPMP ext ver2. First division (seen on SEDI WPMP ext ver1) was a first trial of dividing Western Part Main Part, based on only one drawing, some time before the beginning of the process of 3d reconstructing of the Synagogue. During the 3d reconstruction and further analysis of historical sources, the need of distinguishing more objects appeared.