Identification, anyone?

[Tony Press]

Robert,
As Tony has said, it is a Z bracket attached to the firewall.
Enclosed scan of the Spare Parts list no: 353p showing the bracket, part number BG24.

My original early 1929 Australian Fabric Saloon (I won't call it an RF because even though a 'wide' door, the front and rear side windows are similar in size) has a Benjamin Horn BG 23 mounted on the bonnet bar with a bracket BG 84 similar to that used for the Rist Horn  


The Rist Horn would have been common by this date but as I say waste not want not at Longbridge. 


This same bracket would have briefly been used to mount it on the cylinder head.

Tony.