this is a picture of the "mitzva tanse" of the rebbe of Kretchnif Siget with a kalla - the kalla of his son. This is form the last night of sheva brachos - in Kretchnif SIget their custom is that the rebbe does his mitzva tanse at both the wedding and at the last night of sheva brachos. Due to a shortage of space available in the beis medrash, the mitzva tanse was performed long distance via an extra long gartel or rope, with the kalla in the ezras nashim.
source: Behadrei

I've never seen that before...