Vintage British/London Silver Ashtray, Elegant and Beautiful

Description

I tried to get as much information as I could online prior to placing it on e-bay, but I would appreciate if you would to do your own prior to completing the transaction please. The left facing lion is an indication that this was done in England/London, so is the uncrowned leopard head. So the first 2 hallmarks indicated GB London, the lower case letter f, perhaps indicates the year. The chart that I found that indicates London date letters on silver, has several lower case f letters that look like the one in the ashtray and they show the years, 1780, 1820 or perhaps 1900. On the top in a diamond there are initials AS. This is the makers mark. I wasn't able to get much information on that either. There are a lot of silversmiths with letters AS, but none is hallmarked exactly as this one, in the diamond. Cosmetically in very-very nice condition, sits flat on the table, no issues to report. It weighs 56.4 grams and measures 11 by 7 centimeters and the height is a bit less then 2cm, I will be offering it as is, so please make sure to do your research prior to completing the transaction.