King Aircraft SNC 501-1275-475-063 Blanking Plate Antenna Lower AFT Fuselage

This item was purchased from an aviation surplus sale. I do not know the history of it. It is in good cosmetic condition. It is tagged, "Acft Type: KA 350ER, Reason For Removal: Antenna Installation". I am not able to test it. It only comes with what is shown in the pictures.

S387-26 d