BUCHANAN RING STERLING

We had a good friend stay with us the other day. He kept leaving his unfinished meals on the sink, or on top of the washing machine, plate and all. It was rather like Father Christmas had visited the toilet, every day for a week. 

RING - INSIDE DIAMETER (MM)	USA/ CANADA	UNITED KINGDOM/ AUSTRALIA	EUROPE	GERMAN/ RUSSIA/ ASIA	INDIA/ CHINA/ JAPAN	NETHERLANDS/ SWITZERLAND
16.5	6	M	52	16 1/2	12	11 1/2
17.4	7	O	54	17 1/4	14	14
18.2	8	Q	57	18	16	16 1/2
18.9	9	R 1/2	59	19	18	19
19.8	10	T 1/2	62	20	20	21 1/2
20.65	11	V 1/2	64	20 3/4	23	24
21.5	12	Y	67	21 1/4	25	26 1/2