Silver plate

[pats_treasures]

Please help with any information about this plate.Marked R&D Lion mark 1973. Are there anymore Listed?

Many thanks, for your time and interest.

[pats_treasures]

 Further picture.

[twyngwyn · Accepted solution]

https://www.legislation.gov.au/Details/C2004A00044

someone with more knowledge might come along....

[siddieswans · Accepted solution]

The maker's mark is probably for Roberts & Dore Sheffield and London. The portrait of the Queen is based on the portrait by William Dargie, hence the facsimile signature. 

[pats_treasures · Accepted solution]

Thank you. That was very helpful.Regards,Patricia.