A series of these stamps were issued by Imperial Germany between 1891 and 1919, showing the Kaiser's yacht 'Hohenzollern', for use in their East African territory (OST-AFRIKA) part of which is nowadays Tanzania.  The stamps not the boat lol.  This pale/ light red,  depending on your eyes,  is for 7 1/2 HELLER. A Heller was the same value as half a pfennig which was a hundredth of a German Mark. 

I know,  3 photos of the same,  but different exposures to hopefully show it 'differently'.

From a now vanished World, countries and lifestyles gone, and imagine having a 'yacht' like this!

Postage! I know 'International' on here says an amazing amount,  but if you are outwith Australia, and are interested, please email and I can work out hopefully a more realistic postage cost, possibly a large, or even just a, letter.