Hope he gets back to you. His name is Chris Caine and I understand he can be a bit slow with replies. I would think 1850's would be a nearer date. W. Richards was at Liverpool and Preston plus other addresses over the years. I think the Belgian knockoffs were trying to trade on the better known Westley Richards. I should be in that part of Yorkshire in September and will try to call in at the shop; that is if the other half doesn't complain too loudly. He also has the name for William & Powell of Liverpool and also Thomas Horsley of York. Interesting shop. Lagopus.....