H for "Historical" the model H is designed for your french shank crooks.

Produces a characteristic sound for the natural horn - a dense core that starts gentle but brightens up when pushed, with a lessened difference in timbre between stopped and open notes.

Developed with extensive testing and feedback from our friend Dr. James Hampson of Hampson Horns.  We went through a number of iterations and prototypes to ensure broad compatibility across a wide range of historic instruments - valved and natural and to make sure the design gave a good balance of efficiency and flexibility.  You can read a little about the process here.

If you’re looking to outfit a historic valved horn and don’t intended to use hand technique the Model CV Historic Shank offers a great option for the heavier valved instruments.

#12 bore, very deep.