Initially it appeared the dig would be over very quickly with no significant finds, but heavy rain on the final day revealed a darker area of earth which archaeologists believe may indicate some form of pit.
Three small pieces of pottery have so far been found at the edge of the pit and these will be sent for further analysis.
The find means the dig is now continuing in an attempt to uncover the pit and its possible contents.
Staffordshire County Council’s Archaeologist Stephen Dean said: “This find could reveal a bit more about the history of Tamworth.
Sign up today and find many free personals in London. Archaeologists excavating the car park next to Tamworth Assembly Rooms have made an interesting discovery during their search for clues about the town’s history.Tamworth Borough Council commissioned Wessex Archaeology to explore the site of the Corporation Street car park before the land is built upon as part of the redevelopment and restoration of Tamworth Assembly Rooms.Archaeologists are looking for the survival of any key historical remains that could shed light upon the early development of Tamworth.There will be an opportunity for people to visit the site and find out more about any findings in the coming weeks.