This is (despite the hopes and dreams of many Ebay sellers), a very common Australian stamp issued in 1942. It was the standard postage rate, and 2.5 BILLION of them were issued between 1942 and 1950. The stamp on the left is a rarity though, although it looks almost exactly like the one on the right. Note how pale the King's face is? That's a process called "ink stripping", caused by over-inking of the ink roller during printing. This "White Face" variety is listed in mint condition, but the specialised catalogues don't price it used. I've seen a full mint sheet but never a used copy. MUH/MNH, the catalogue value is $250, mint hinged is $225. But there's more! Was it cancelled in a strange place called AY? No, it wasn't. In New South Wales from the 1910's to the 1960's, if a post office canceller couldn't be replaced quickly, an old canceller from another post office was utilised after some of the place-name had been removed. They're very collectable in their own right, but unfortunately I don't own the reference book for these and can't identify where the "AY" may have come from. Also, the "for comparison" stamp on the right, which I include in the sale, has an inverted watermark, found only in booklet stamps. Two common stamps that are a little bit different, listed for sale at $75. I can't remember what I had for lunch yesterday, but I remember this stuff!

In another post I showed a Penny Black that I bought recently. It's replaced the one I had in my GB collection, so I'm selling my old one shown in the pic I chose not to list it on Ebay, where there's hundreds of Penny Blacks for sale and the competition is fierce, and listed it on a stamp forum instead. With a day to go on the auction, I've already recouped the amount I paid for the better stamp. I get a sale in three days, no merchant fees and money in the bank. Staying loyal to one platform is fine, but think horses for courses, regardless of what you're selling

Imagine trying to publish this today?

I've got a few medical conditions that occasionally all decide to hit me on the same day. This is that day, and I'm feeling really under the weather. I'll still pop in, but I should be back tomorrow

I've attached a page from ACSC Postage Due catalogue describing the differnent perforation options. I have also attached a PDF of EzPerf, a digital perf gauge I use which gives me much better (and demonstrable) accuracy on perforations. As you can see the perfs are 11.25 x average 11.55. What are your thoughts as to what this stamp is (catalogue number)?