no, i’ve got it wrong, the reflection of light on the ligature in the above photo graph makes the ligature look slightly raised above the reed, so in fact it can be turned around 180 degrees.
There are some ligatures metal and rubber with a side designed to fit above the reed, but most of them have the screws on the opposite side of the reed. Clarinet players often put the ligature on like in the above photo graph.
i often use plasticover reeds on my alto and clarinet mouthpieces, i find it difficult to align them with the rails and the tip, because plasticover reeds are coated with black plastic and the mouthpieces are black.
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