I do not know this issue at all so please See scans for condition. Paper is very thin and gum  appears to have toning? Unchecked for varieties and postmarks. Ideal for study and classification.

Low start, as always.

Domestic (U.K.) postage - £2 first class. £2.91 for 2nd class signed for
International post - £4 or £10 registered post
Please see scan and get in touch with any questions