Rob Hall Antiques has dated this Victorian Tea Advertising Poster to the 1890s.
As London was the largest tea trading port in the world by the middle of the 19th century, Horniman moved the company there in 1852. Horniman's tea is still sold today.

The poster has some losses to the bottom and a patch middle right. The poster has historically been laid onto linen. There is staining commensurate with age.
Measuring: (frame) 77cm x 62cm
England, c.1890
Rob Hall Antiques has dated this Victorian Tea Advertising Poster to the 1890s.
You can view the stock and full dealer information on the Rob Hall Antiques Profile Page