▁be ▁made ▁until ▁ 1 9 2 1 , ▁when ▁the ▁council ▁decided ▁to ▁convert ▁to ▁overhead ▁w iring . ▁ ▁The ▁first ▁line ▁opened ▁on ▁ 6 ▁February ▁ 1 9 0 2 . ▁The ▁main ▁service ▁connected ▁Wol ver ham pton ▁railway ▁station ▁with ▁the ▁ 1 9 0 2 ▁exhibition ▁in ▁West ▁Park . ▁ ▁Add itional ▁lines ▁soon ▁followed ▁and ▁the ▁basic ▁system ▁was ▁complete ▁in ▁ 3 ▁years . ▁A ▁further ▁line ▁was ▁added ▁in ▁ 1 9 0 9 ▁to ▁P enn ▁Field s . ▁ ▁Fle et ▁ ▁The ▁company ▁ordered ▁ 2 4 ▁tram c ars ▁for ▁its ▁initial ▁operations ▁▁ 1 - 9 ▁Electric ▁Railway ▁and ▁Tr am way ▁Car riage ▁Works ▁ 1 0 - 1 8 ▁G . F . ▁Mil nes ▁& ▁Co . ▁ 1 9 - 2 4 ▁Electric ▁Railway ▁and ▁Tr am way ▁Car riage ▁Works ▁ ▁Later ▁add itions ▁were : ▁ 2 5 - 3 0 ▁G . F . ▁Mil nes ▁& ▁Co . ▁ 1 9 0 4 ▁ 3 1 - 4 0 ▁United ▁Electric ▁Car ▁Company ▁ 1 9 0 5 ▁ 4 1 - 4 3 ▁United ▁Electric ▁Car ▁Company ▁ 1 9 0 6 ▁ 4 4 - 4 6 ▁United ▁Electric ▁Car ▁Company ▁ 1 9 0 8 ▁ 4 7 - 4 9 ▁United ▁Electric ▁Car ▁Company ▁ 1 9 0 9 ▁ 5 0 - 5 2 ▁United ▁Electric ▁Car ▁Company ▁ 1 9 1 3 ▁