Scans of Fig. 1 in Tamari's 1951 thesis MR 51833 can be found here:
Stasheff, Jim. How I ‘met’ Dov Tamari. Associahedra, Tamari lattices and related structures, 45-63. Progr. Math., 299, 2012. MR 3221533.
Here is a TeX/TikZ presentation:
The following colored variant has reversed arrows and perspective. It illustrates the strong deformation retractions
ℳ4 → ℳ3 → ℳ2 → ℳ1
The embeddings
ℳ1 → ℳ2 → ℳ3 → ℳ4
are given by prepending "1" to the labels. The green/red/blue arrows indicate the homotopies. In terms of the cubical view, these retract the cuboid linearly to a side.
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