The model number is normally found inside the fridge or freezer. You will likely need to remove the salad drawer or freezer drawer to find the model number plate. Otherwise the model number is likely to be on the side or rear of the appliance.
Beko Fridge & Freezer Refrigerator Glass Shelf Assembly with Front & Rear Trims
Genuine Bosch Fridge Freezer Refrigerator Door Shelf Tray Top / Middle 11009804
BOSCH Fridge Freezer Refrigerator Door Bottle Shelf Tray GENUINE 743239
BOSCH Fridge Freezer Refrigerator Door Bottle Shelf KGN33 /34 Genuine 11009803
Bosch Fridge Freezer Refrigerator Door Bottle Shelf KGN33NWEAG Genuine 11009803
Bosch KGN27NWFAG/01 Fridge Freezer Refrigerator Door Shelf Bottom 11044042