Here's another question for you all!
In 1928, Perkins Bacon issued a single $1 stamp for Kelantan. The engraving was by A J Downey.

So far so simple.
In 1937, De La Rue issued a set of definitives for Kelantan.

As you can see from both images, they are fairly alike. I don't have any of these stamps and from these images I can't really make out (though I guess so) whether the engraving of the portrait is actually the same or not.
Do any of you have these two stamps so you can compare the two engravings (maybe upload good scans) and see whether Downey was also the engraver of the 1937 portrait?