Part of the Week! Sturmey Archer Strengthening Pad HSH401

We have the Sturmey Archer Stengthening Pad part HSH401. It goes on the left chain stay of the bike, just under the Brake Arm Clip Assembly (HCB 103 or HCB 104) on the S3C Coaster Brake hub. The third photo shows what it would look like with a brake arm clip on it. I assume it's main function is to distribute the force of that coaster brake arm into a bigger area, reducing paint damage and fatigue on the clip.