In a recent message yoyo wrote:

I did some more research, and established that this stamp is nearly
identical to a stamp recently sold on ebay by a known forger. The
watermark - 8:30 PM on May 29 - was the same.

Odd watermark...

Postmark, perchance?

I have a scarce Italian stamp with a forged postmark.
This was confirmed when an Auction Catalogue mentioned
an identical stamp with identical postmark!

--
Tony Clayton
Coins of the UK : http://www.coins-of-the-uk.co.uk
Sent using RISCOS on an Acorn Strong Arm RiscPC
.... I'm no stranger, just a friend you haven't met...