My daughter-in-law asked me to get an old table that has been in her family for a long time - at least 80 yrs. Not to refinish just get functional. I have completed most tasks but now dealing with the supports for the drop leaf on each side. Three of the supports need to be fixed but I cannot determine how to get at the pivot pins. There is a point where the support once had a screw (see pic) but there are no screws. I need to remove the pin support but not sure how it is attached. I assume glued since there is no screws or nails on the backside of the apron. I know nothing of old tables so completely stuck. I will appreciate any suggestions.