Hi I inherited a small undercounter upright freezer "Frigidaire Model: FV115... serial number : 1160 4782 4200 2040 310243... Part Code: 20616174". The top 'flap' shelf seems to be bare inside... i can see the metal spiral shaped 'thing' where the shelf normally sits at the bottom. is there meant to be a shelf on top of that? i tried searching the internet for an inside photo but cant seem to find one. any help would be appreciated. thanks.