Help identify the manufacturer of the ring

[Timba]

Help identify the manufacturer of the ring. I've been searching for information on this ring for several days on the Internet. No results. I ask your help in determining the manufacturer of this product and the year of its production. I will be grateful for useful information.

[AG2012]

Hi,
Welcome to the forums.
Looks like date letter ``f`` for 1980 (Birmingham).
Maker L & W has not been identified but recorded in 1977.
Look here:
http://www.silvermakersmarks.co.uk/Make ... m-L.html#L&

Regards

[dognose]

Hi,

Welcome to the Forum.

See Lister & Wright at: http://www.925-1000.com/forum/viewtopic ... ter#p96273

Trev.

[Timba]

Many thanks for the honor and help on your part. As a citizen of another country, it's twice as pleasant for me to get help and support from you. Special thanks to the creators of the bottom Internet resource for creating a useful and really working assistant. Best regards, Dmitry!