Stamps of Indian Convention States-Early overprints on Victoria Heads

The illustration below shows some of the variety of overprints on the early stamps over Indian Convention States. Examples are of Jind, Nabha, Chamba and Gwalior. Early overprints were in red or black often as a "halo" around the head of Victoria. Many must have been done by hand since the positions of the overprint can vary considerably as the Jind examples show. The Gwalior overprints also show some variation, sometimes written in Hindi script only other times in English and Hindi and with variations in position.