I understand the US got white ones before the grey ones came out.
NOpe as DC says all "A" where Silver, same as the DT2MX it was based on, white never came out till the 76' ranges.
This guy has just repainted it white when he restored it, there are black ones and yellow ones painted up in the states that i know of, some also fitted with the chequered 125 logo "B" tanks,
they look good to for somthing differant. if i had a shit tank to respay id have a crack at another colour too.