New Old Stock (NOS) factory original coin rejector mechanism locking/latch plates with the (W) logo stamp as shown in the upside down photo...also known as 01-4253. These require #6-32 x 3/16 inch machine screws. 6-32 x 1/4 will jam assembly.
This assembly also should come with two longer coin mech mounting studs/guide pins as the regular sized #6 stud (3/16 long) are a bit short and ideally you want the longer pins that are 1/2 inch long and have a tapered slot driver end. Still looking for the correct part number for these pins!