I attempted to recreate this in 2016 and have some notes. The bar was the Brick Farm Tavern in Hopewell, an excellent cocktail bar and farm-to-table restaurant. Like they grow their own lamb farm-to-table. Anyway the recreation I came up with was

1.5 oz Bombay Saphire gin
1/2 oz lemon juice
1/2 oz Maraschino
1/2 oz Green Chartreuse (I didn't have yellow)
1/2 oz Violet liqueur (bitter truth)

To be honest when I look at this it seems more like an Aviation with Chartreuse than a Last Word with violet. But it's in the same ballpark.