US #360 Blue Paper w/ Weiss Cert?! Extremely rare if genuine Used unlisted Scott

Category Stamps United States 1901-40

Current price $1,580.55

Listing type Chinese

Location Vashon, Washington 980** US

Quantity sold 1

Quantity available 1

Bids 23

Seller prs256 (5208)

Seller rating 99.9% positive feedback

Year Of Issue 1901-1910

Certification Weiss

Quality Used

Grade Ungraded

Color Brown

Denomination 4 Cent

Place Of Origin United States

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US #360 Bluish Paper w/ Weiss Cert?! Ext. rare if genuine. Used is unlisted in Scott. Value would surely be well into five figure territory if genuine. The stamp does appear to be on Bluish Paper.
The certificate does appears authentic as well. Although, it is is a photocopy, not the original certificate. At the very least, I think there is reason for caution on the basis of its presumed rarity alone. I had always believed that there weren't any Used #360's, because I remembered reading that the 4-cent and 8-cent values of the Bluish Paper issue were not made available for use as postage. I forget the exact history, though. Maybe a few were legitimately used?
For this stamp I'll accept returns for up to 90 days, with three conditions: (1) after 30 days, returns may be made only for reasons of identification - not for condition, etc. (2) Returns after 30 days must be accompanied by a (new) valid certificate. I will reimburse the buyer's certification costs. (3) The buyer must pay via PayPal in order to qualify for an extended return.
Combined shipping for multiple items available please request invoice. See pictures for condition, possible flaws, condition of gum. Questions welcome. Shipped with USPS First Class.

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