Hi is it possible to date this silver plated item
There is no direct way of dating this.
CSL over RR is probably the manufacturer as the letters appear to be associated with the 7-51 mark which is probably factory-specific. So the Carrington mark therefore was probably applied as a retailer’s mark. Carringtons moved into the Regent Street address in 1870 and the address became London W1 rather than London W in 1917. That gives you a potential date range.
Hi thank you i appreciate it