Thursday, 6 November 2014
1892 1c on 5c slate with raised stop
This would constitute a new finding and is not described in any catalogue that I know off. These provisionals were issued due to low stocks of the 1c which was used for local postcards as well as those postcards to Labuan and Brunei. According to part 1 of The Stamps and Postal History of North Borneo, 20,000 copies were surcharged around July 1892 and there were 4 settings of the surcharge on the 5c stamp.
I would concur that the art and joy of philately would include the uncovering of errors and imperfections.