MLD to the more popular chair tiling, this version allows a simple translation into a coloured lattice: Replace each square of type i (1,2,3, or 4) with its midpoint, and assign to it colour i. Then each set of all points of colour i is a model set with internal p-adic space with p=2. This was first shown in [BMS98], a general framework is given in [LMS03].
[BMS98]
Baake, M and Moody, R V and Schlottmann, M
Limit-(quasi-)periodic point sets as quasicrystals with p-adic internal spaces
J. Phys. A: Math. Gen.
1998,
31,
pp. 55-65,
[LMS03]
Lee, J E S and Moody, R V and Solomyak, B
Consequences of Pure Point Diffraction Spectra for Multiset Substitution Systems
Discrete and Computational Geometry
2003,
29,
pp. 525-560,
MR1702375