There appears to be a tiny scuff on the back about 1mm but aside from this

Button Adjustable Suspenders / Braces

With a really simple design this liner focuses pretty much just on warmth

Engraved Army Medical Corps Buttons

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British Royal Navy 50s Salopettes Bibbed Dungarees - W39 L31.5 Flecktarn There appears to be aAt a glance Cotton Material 2 Slit Pockets Button Fly Full Length Button Suspenders Side Buttons Bibbed Front Durable & Heavy Duty Solid Navy Blue Colour Waistband Flat: 19. 5" Suggested Size: Large Regular Label reads "SIZE 10" Inside Leg Length: 31. 5" Regular Total Length: 43. 5" Vintage Militaria Issued 1950's 1960's Genuine British Royal Navy Surplus Grades Grade 1. 5 Good condition, some general signs of previous use but up for much more wear!