Lot 242 Nigeria #2 1d Carmine Red, 1914-1929 King George V Imperium Keyplate Issue, Usage On Sepia Postcard of Queen Beach on River, Calabar To Zagreb Yugoslavia

Sepia picture postcard, depicting Queen Beach on River in Calabar, sent to Zagreb, Yugoslavia (this is the only piece of mail I have seen from Nigeria to this country). Sent at the 1d rate, and paid with a single 1d carmine-red, tied by Proud type D17 Calabar cancel, dated December 20, 1920.

VF condition overall. The value of the cancel in Proud is 2 GBP. The destination is rare and should add $25. Stamp value is minimal. So, my estimate of the value of this item is $30.