I was looking at this post about Rwanda’s coins, particularly the large image in replies 27+28 – I noticed a design related error…
There is a sort of code for the texture/shading of heraldic designs when they are done without colouring e.g. when they are engraved. There is a different shading designated for representing each of the heraldic colours.
Section 2 here shows some details…
Tincture - Wikipedia(heraldry)
Rwanda’s circulation coins of 1960s, 1970s and 1980s as shown in this topic include the Seal of Rwanda as used from 1962 to 2001.
That seal as used by Rwanda from 1962-2001 is shown here…
Seal of Rwanda - Wikipedia…as would have been imagined the flags in the seal are the same as another. Each flag in the emblem is shown as having three vertical bands, from the hoist red-yellow-green.
Looking at the two flags in the state emblem on the 1970s coin (in reply 28), these have different shading for their third bands. The third band from the hoist on the flag to the right has the shading as required for PURPLE instead of the shading as required for green. This can also be seen on other later circulation types (but not in the type shown in reply 27).
Looking briefly at collector coins… The 1965 Gold types seems to show a red-white-yellow! The two early 1990s silver types each show red-yellow-green for both flags in the emblem (correct).
Or is there a rule in heraldry that makes both version of the engraved state emblem correct?
Thanks Mr Paul Baker