You are purchasing a NOS (New Old Stock) needle bearing for the steering column for the MGTC. This is part of the Tompkins Steering kit. 

This goes at the top of the column.

Please look at the 4th photo, this is #1 in the illustration. 

New from a vintage British inventory,  part number 129-214.   {B W} 

Photos are the actual part.

Please see our auctions and ebay store for more NOS new and one of a kind parts.

Thanks.