This cocktail is actually what led me into researching a somewhat distant variant, the Monkey Gland. I first came about them both in Dr. Cocktail’s very enjoyable book “Vintage Spirits & Forgotten Cocktails.” The ingredients for the Income Tax are easier to find, so it’s more likely you’ll be able to try one of these out with even a modest liquor collection.

You might try trimming down the vermouths a bit if they’re coming across too strong. What I have is a cross between Dr. Cocktail’s and Drinkboy’s versions. Drinkboy cuts the vermouth to 1/4oz each and lightens up on the gin by a hair. I had a big orange, and enjoyed the proportions above. Orange is the first flavor that comes across, which is fun in a cocktail. The other ingredients come out shortly after and all in all it’s a very enjoyable and drinkable cocktail.