Help Wanted With G.b. Stamps For Cooks Booklet

Hello All,

I have a couple of queries regarding the 1969 Stamps for Cooks booklet and wondered if anyone can help.

1. I think I have the uncoated variety on the 'Method' pane of 5d stamps but I am not prepared to try the silver test on it as I do not want to damage it.
The S.G. G.B. Vol. 3 has the following note regarding paper -
Quote:-
Unwatermarked chalk-surfaced paper was used for all values.
Exceptionally, examples of all four panes from the £1 "Stamps for Cooks" booklet and the 3d and 10d from sheets exist on uncoated paper. It does not respond to the chalky test (that is applying silver to see if it will produce a black line) and may be further distinguished from the normal chalk-surfaced paper by the fibres which clearly show on the surface, resulting in the printing impression being rougher, and by the screening dots which are not so evident.
Unquote.

I have scanned part of the two panes together and perhaps someone can
recognise if one is uncoated - not easy from a scanned image I know <grin>





2. The 'Method' pane of 4d values shows a red line running down through all three stamps on the fourth row. I know I have read something about that somewhere but cannot track down the source and it is not mentioned in the specialised catalogue.





Any information would be much appreciated.

Cheers

Ron.