On Voltair, we had a slightly odd-shaped cockpit table which fitted into the space in your photo. One had to remove the port side door down to the cabin in order to install it, but it was just the job for supporting the glasses and canapes as we all got warmed up before dinner. The rod could be to lock a somewhat different table into place, perhaps.
Ours was a fairly late hull, so if yours is an early one, perhaps there was some development going on for this table during the period of production.