gn616024 element upper drop down type
TO401X TO601X models have drop down top element from version 03 commencing 7.3.2008 (S/n 8103001 onwards)TO101X TO201W/X models have drop down top element from version 03 commencing 12.7.2008 (S/n 8283001 onwards). models before this used fixed element gn616025
