1 9 2 7 ▁were ▁issued ▁from ▁the ▁factory ▁in ▁black ▁le ather . ▁ ▁Pattern s ▁▁ ▁The ▁original ▁Pattern ▁ 1 0 3 7 ▁was ▁made ▁from ▁ 1 8 8 7 ▁to ▁ 1 9 0 7 . ▁During ▁the ▁Second ▁Bo er ▁War ▁( 1 8 9 9 - 1 9 0 2 ), ▁civil ian ▁manufact ur ers ▁made ▁a ▁series ▁of ▁variants ▁on ▁the ▁Pattern ▁ 1 0 3 7 ▁due ▁to ▁differ ing ▁manufact uring ▁techniques ▁( like ▁machine - se wn ▁upp ers ▁or ▁gl ued - on ▁outer ▁sol es ). ▁ ▁An ▁improved ▁ 1 0 3 7 i ▁pattern ▁was ▁adopted ▁from ▁ 1 9 0 7 ▁to ▁ 1 9 1 1 . ▁It ▁was ▁tempor arily ▁replaced ▁by ▁the ▁similar ▁ 7 3 2 5 ▁and ▁ 7 3 2 6 ▁patterns ▁from ▁ 1 9 1 1 ▁to ▁ 1 9 1 4 ▁while ▁they ▁did ▁research ▁for ▁a ▁replacement ▁boot . ▁The ▁experimental ▁" A " ▁and ▁" H N " ▁series ▁were ▁also ▁made ▁during ▁this ▁time ▁but ▁were ▁ob sole te ▁by ▁the ▁dawn ▁of ▁World ▁War ▁I . ▁ ▁By ▁ 1 9 1 5 , ▁the ▁" B " ▁series ▁was ▁begun , ▁consisting ▁chief ly ▁of ▁the ▁" B 2 " ▁and ▁" B 5 ". ▁It ▁was ▁a ▁pattern ▁of ▁am mun ition ▁boot ▁with ▁w oven ▁cot ton ▁la ces , ▁a ▁plain - le ather ▁counter , ▁and ▁lack ed