This is most probably due to varying quantities of dye

the AGC fulfils vital administrative duties

some general signs of prior use such as a little marking towards the front bottom

an Irish army component dating back as early as the 1920's

Bulgarian People's Army Olive Green Cossack Shirt - Large Dress This is most probably dueAt a glance 100% Heavy Cotton Material 2 Chest Button Pockets Shoulder Epaulettes Rank Slides Engraved Belt Hooks & Buttons Cossack Style Eastern Bloc Warsaw Pact Kit Internal Drawstring Waist Hook & Eye Collar Junior Officer Rank 1 4 Length 3 Button Front Solid Olive Green Colour Chest Size: 45" Suggested Size: Large Slim Sleeve Length: 22. 5" X Short Collar to Hem: 26" Vintage Militaria Cold War Issue Dated 1977 Genuine Bulgarian People's Army