I have a similar ring with unusual hallmarks. Like yours, mine has a 3 digit number followed by 9CT&PLAT (the full engraving reads 117 9CT&PLAT).
Most of my other gold items have regular UK hallmarking, but this ring is different.
Did you manage to find anything out about what the 3 digit number means?
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ring by: Janice
I have double checked and it is definately 285 which is very clear also the writing is too, thank you for your last comment :)
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Strong Metals by: Anonymous
could it actually be 375? Sometimes the numbers that denote the gold content are worn away due to the passage of time and from being worn and loved - 9K, 9ct is 375 (parts per 1000) or is 37. 5% gold is mainly used in British Commonwealth countries. It is not recognized in USA. It is the most Hard wearing gold. Plat is for Platinum. Platinum is very heavy and was very popular around the 1930s.
