Ceylon SG 4 Forgery

A couple of days back I wrote about Ceylon stamp genuine vs forgery that I found in a lot I bought. The catalogue value of the original stamp is GBP 70,000. I asked about the stamp on The Stamp Forum board and falschung, who is an expert on forgeries was kind enough to respond. Here's what he said about the stamp.

First, you stamp slightly enhanced, to the right a genuine SG 4 that sold for $25,000

There is an obvious lack of detail in your stamp especially when you look at the background behind the Queen and the edge decorations.
Many lines & dots are missing in the country and value tablet
The color is too bright and not dull as it should be
Also it is in too good a shape for a 150 year old stamp without the edge blur inking of period stamps

SO, what is it?
Most of the forgeries of this stamp are rather crude and this is not.
Most good forgeries have a watermark impressed with oil & a die.
It is obviously very good and would fool a few people.
So we have some choices

An 1867 SG65a rose/carmine with trimmed perfs as this poor examples that tried to fake an SG4 ??

A cut out from the 1950 London Ex sheet

Or my preferred choice

A Peter Winter Forgery
Note the weak spot in the upper left frame which is the same as yours

Oneglia & Jeffries also made good forgeries
One Oneglia sold at a prestigious action as a genuine

My 2c worth without actually seeing the stamp for watermark & paper

Peter Winter made most of his forgeries in the 1980's
His work may well be the best overall of any forger
Like these gems

He never sold his works as "forgeries" but accurate reproductions mainly under a company called House of Stamps
A "bonvivant", opera singer and artist who reproduced many of the world classics.