[mercman from oz]

1934 and 1935 Ford Spare Wheel Covers compared.
The most obvious difference is the width of the stainless ring, but that is only the start.
If you look at the picture of the underside, you can see that the stainless ring is held in place by a small threaded bolt on the 33/34 cover.
On the 35 cover - right, the hole is smaller and the stainless ring is held in place by little clips.
Apart from the size of the hole to support this Stainless ring, the actual covers are also different.
The inner edge of the 33/34 cover is rolled and very substantial.
However, the inner edge of the 35 cover is not rolled and easy to get out of shape, as you can on this example.