Mannequin in the center wears an M59, AKA, Pentomic uniform, and shows the very rare camouflage web gear that is correct for these uniforms.
M59s were the first Spanish Camouflage uniforms ever issued and are fully reversible from Brown dominant to Green dominant. M59s were mostly used by COE ( Spec Ops Companies ).
The other 2 uniforms are both M61s and are parachutist uniforms. M61s are cut nearly identical to WWII German Splinter camo parachutist uniforms.
M61s were manufactured in both Green and Brown dominant colors that are essentially the same colors as the 2 patterns used on M59s.
Green dominant M61 uniforms were discontinued after a few years. Brown dominant M61s continued to be manufactured until the mid to late 1960s, and worn well into the 1980s.
All early M61s had aluminum zippers. When Green dominant M61s were discontinued, Brown dominant M61s were slightly modified with brown or green coated metal zippers.