This item was a factory accessory, part number BHA 4140, some believe even a standard item on some MGA, apparently more likely for the Twin Cam cars or for any rally car. It is a pair of battery covers molded from Bakelite (phenol-fiber plastic). The ends with the holes overhang the sides of the batteries to accept the anchoring J-bolts. The long straught edges sit on top of the battery to bold it down. Angular recesses underneath at the ends allow space for passage of the battery cables while a large underside cavity allows space for the cable terminals, battery caps, and ample ventillation. Although these were fairly common "back in the day", they are exceedingly rare today. They did present some inconvenience for battery servicing, which is probaby why they so easily disappeared. Those of us who may travel regularly on gravel roads can appreciate the utility of these covers, considering that the MGA batteries are located near the ground and only inches from the rear tires. I know how much bother it is to clean dirt and gravel off the battery tops each time I need to check the fluid and clean the terminals.

This part is disclosed in Confidential Service Memorandum MG/249 dated 17 April 1959, covering 'MGA' and 'MGA Twin-Cam'.

To prevent snow, mud, and road dust reaching the batteries,
covers are now available.

The parts required are:
	Battery Cover	BHA4140	2 off
	Cap nut	BHA4141	4 off
	Bolt - long	AHH5964	2 off
	Bolt - short	AHH5963	2 off
	Nut	FNZ104	4 off

From the lack of any further wording, it appears that this item is intended to be an optional accessory, not standard equipment.