Find the Monthly Set – 8 here .
What ‘error’ connects ? ( Not an exhaustive list )

A

B

C

D

E

F
These are the images featured on some of the most famous and valuable stamps ever . The fact that made the stamps valuable was that all the images were inverted .
A – A Rushlight – Featured on the ‘CIA Invert‘
B – Queen Victoria – Featured on the ‘Inverted Head 4 Annas‘
C – Dag Hammarskjold – Featured on the ‘Dag Hammarskjold Invert‘
D – A Black swan – Featured on the ‘Inverted Swan‘
E – A Curtiss JN-4 ‘Jenny’ airplane – Featured on the ‘Inverted Jenny‘
F – The Dendermonde town hall in Belgium – Featured on the ‘Inverted Dendermonde‘
Cracked by Abhi , Ijaz Aslam , Arun Hiregange , Rithwik , Anil Raghavan and Johny Walker . Salut folks !!
Notable inverted stamps. Like inverted jenny, inverted swan, inverted dag, CIA invert etc.
Inverted stamp errors
CIA invert(rushlight holder),Queen Victoria,Dag Hammershold,Inverted Swan,Inverted Jenny
Fantastic. How did you cook this up.
Invert Errors in stamps: Hammarsjkold, Swan, Jenny biplane, 4 Annas Head (of Queen Victoria) etc.
Again a good question
I m a good philatellist! on the basis of tat let me say !
Connect – Invert error
It occurs when part of a postage stamp is printed upside-down.
( All highlighted ones are in the question ! but dunni abt Queen Victoria )
Notable Inverts
Australia
* Inverted Swan
Canada
* St. Lawrence Seaway invert (1959)
US
* 1869 inverts (1869)
* Pan-American inverts (1901)
* Inverted Jenny (1918)
* Dag Hammarskjöld invert (1962)
* CIA invert (1976)
* “Nixon invert” (1996)
* Savings Bank invert
B- Queen Victoria
E- Curtiss JN-4
invert error in postage stamps
Stamp invert error