Rare ERROR collection in Philately of British India Period

Error, British India, King George V, &nbsp;1922, &frac12; Anna, Block of Four, Surcharge Overprint inverted, Phila # 191, MNH,&nbsp;excellent condition, Rare.

Pair of Error Stamp of King George V Half Anna Surcharg ...

Rare Error Stamp of King George V printed with Inverted ...

Extremely Rare Albino Error Envelope of KGVI of One & H ...

Very Rare Error Stamp of Queen Victoria 4as Green print ...

Rare Error Stamps Pair of Queen Victoria Half Anna Blue ...

Error Stamp of Queen Victoria 2as printing shifted to u ...

Imperf Block of Sixteen Stamps in Flora and Fauna Defin ...

Rare Refugee Relief Error in Official Definitive Series ...

Printing Error in Definitive Series Sheet of 100 Stamps ...

Exceedingly Rare Multiple Printing Error of Queen Victo ...

Perforation Shift Error in Children’s Day Miniature She ...

Vertical IMPERF PAIR of definitive Series of 1980, 2Rs ...