Monitor 7 Peerless Tweeter Question

For some reason, I cannot attach an image of a speaker pair I may buy. Let me ask the question without the image. The tweeter looks like the Peerless but it does not have a hole burned in the center of the dome. I think some of the early SL1000s looked similar to the Peerless from what I've read. Do all Peerless have the hole?

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