Nice drink on a brisk and windy night. I adjusted the proportions ever so slightly to 1.75 oz, 1.25, and .5. I found the 3rd and 6ths harder to measure... Maybe if I had a new jigger :)
John, you are right. My comment was made years ago and quite a while ago I bought a bunch of Mr. Difford's jiggers for myself and as gifts, when they still needed to be shipped to the US from the UK. I may have been among his first US customers.