He identified it as similar to one at the Potteries Museum in Stoke-on-Trent, which is believed to have been made in Shrewsbury around 1750.
At the sale on July 11 it sold to a collector at a double-estimate £3000.
Mr Lamond said later that while the dish may have been made in Shrewsbury, there was no way of knowing for certain, but he was delighted with the price. He says that currently the demand for early slipware exceeds supply, adding that while it comes up from time to time it is now more than ten years since the success of the pieces offered at Halls' rooms from the Old House Museum, Dogpole, Shrewsbury.
"Because they don't come up for auction that often, these pieces are much sought-after because they fit into modern interiors," said Mr Lamond.
"This dish had the wow factor because it was antique with a contemporary look and in remarkably good condition for its age. Few slipware bowls of this age survive without any damage and this one was exactly what a collector is looking for."
The buyer's premium was 17.5%.