King Aircraft SNC503-075-075-813-038-050 Z Angle AFT

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. Model BK 350, reason for removal: Redesign". It measures about 8 1/8" x 1 1/2". I am not able to test it. It only comes with what is shown in the pictures.

S329-31 d