We have sold 3 main versions of the CAM222 over the years. You can identitify the model by looking at the arrangement of the LEDs at the front of the camera and also the mounting holes. Type A and Type C are very similar to eack other apart from the paint finish. Type C also has more defined edges that Type A. Type B is obviously different with round edges and infinate adjustment between the lenses. We keep these out of stock even though we do keep stocks of them. This is because they are priced at a discount and we only make them available to past customers.