Does anybody have a pic of the original GE M250 ?
GE M-250 (1959-1960): Original GE M-250 which had the same body as GE M-400 but came with polycarbonate refractor. All are silver.
GE M-250R (1960-April 1970) Smaller design and first design came with a button without a thumb latch and was silver. Later versions had thumb latch and came out in grey also.
GE M-250R1 (May 1970-1985) Similar design as the 1960s GE M-250R but redesigned the slipfitter design and a bail latch. The 80s version had drip holes on the bottom.
GE M-250R2 (May 1985-present): more compact design and more simple design...