These Seattle's are designed to show more than one city-state per stamp. So the first is a double, the second a normal single. This is an unusual precancel.
Sometimes I am confused by by roller cancels that have the appearance of precancels. How do you tell the difference between them on this stamp? The reason I ask, is that precancels of this type typically have the city, state each with their own top/bottom bars, but these examples have a single bar separating each city, state instance.
It can be confusing. The PSS catalog editors (gatekeepers) have an esoteric set of guidelines for inclusion. In some cases, the scholarship/research into whether a cancel is really a precancel was done decades ago when the cancels were current. The best generalization: if it is in the catalog now it is a real precancel, if it is not in the catalog now - it is not and will never be reconsidered.
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