A rather smelly tramp walked into Stanley Gibbons in London. The shop assistant asked "can I help you sir"
"Yes" replied the tramp " I have this mint 1d black that I wish to sell"
The clerk a bit apprehensive of the mans appearance asked him "is it your property and where did you acquire it ?"
"I was once an eccentric millionaire collector and had some time on my hands so I built an electronic time machine out of used Machins and went back to 1840, this is a souvenir from my visit" said the tramp.
The clerk thought poor fellow I will humour him, "If the time machine was electronic how did you get back from Victorian times"
The tramp replied " I knew you might not believe me, it was not so easy, my back battery power pack sent me back to the future, and I spent my complete fortune trying to return, it took me 12 years, Inflation was rife, I slipped into destitution and became homeless, this is why I look so scruffy.
"Who was on the throne whilst you were in the future? Charles or William"?
"Neither" said the Tramp Lizzie was following in her Mothers footsteps and was still alive, she refuses to give up the throne"
The shop assistant thought to himself, well I have heard enough and had a bit of fun. "I'm sorry sir although this is a genuine 1d black the stamp has been very badly creased on its travels and only has one very poor margin, I am afraid it is not good enough to place into Gibbons stock. If you want to sell it I suggest you put it on eBay.
The tramp replied "all that work and travel for nothing, I guess this sheet of £14.00 value Machins cylinder D2 D1 no dot with marginal dates showing 21/03/2019 is no good either.