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it is a genuine unused, o.g., previously hinged vertical coil strip of three, with Brinkerhoff type IIa private perforations (the bottom three stamps never hinged).
it is a genuine unused, o.g., previously hinged vertical strip of four with paste up tab at the bottom (the bottom three stamps NH) and FAKE Brinkerhoff type II private perforations.
it is a genuine unused, o.g., previously hinged coil guide line strip of four (the bottom three stamps NH) with Brinkerhoff type IIa private perforations.
it is a genuine unused, o.g., previously hinged horizontal strip of four (the left and right stamps NH) with FAKE Mailometer type I private perforations.