Rocky Mountain Cooler from Cocktails How to Mix Them by Robert, 1922:
Yes, we have the bar book. See it here: https://vintagecookbook.com/product/cocktails-mix-robert/
Cocktails: How to Mix Them, by Robert, Of the American Bar, Casino Municipal, Nice, and late of the Embassy Club, London. Published by Herbert Jenkins Limited, London. Cocktails: How to Mix Them is a Prohibition era bar book, a cocktail book for Prohibition era speakeasy clubs and home bars. Hard cover with NO dust jacket. First published in 1922. This copy is from the seventh printing. Excellent antique condition. Some minor foxing. Cover has sun fading. Binding sound. Hinges perfect. Pages clean and clear of spots and stains.
Robert gives full instructions for mixing the well known cocktails, cobblers, coolers, crustas, egg noggs, fizzes, Flips, Frappes, highballs, juleps, pousse cafes, punches, rikeys, sangarees, slings, smashes, sours and toddies.