  Wirtinger presentations of deficiency 1 appear in the context of knots, long
virtual knots, and ribbon 2-knots. They are encoded by (word) labeled oriented
trees and, for that reason, are also called LOT presentations. These
presentations are a well known and important testing ground for the validity
(or failure) of Whitehead's asphericity conjecture. In this paper we define
LOTs of Coxeter type and show that for every given $n$ there exists a (prime)
LOT of Coxeter type with group of rank $n$. We also show that label separated
Coxeter LOTs are aspherical.
