This is a early version of the THORN GAMMA 6 lantern .This was made in the 60s?

This is a later version of the THORN GAMMA 6 lantern which was made in the early 70s to about 1976.

This is a 35W SOX integral gear version of the lantern which has got a big base for the 35W SOX control gear ,while for the MBF and SON control gear use a small base.

After about 1976 the 35W SOX control gear got smaller and they use the same base as for the MBF and SON control gear .

This has got a 20in wide canopy

 The bulb is a 35W SOX bulb with a Nema Socket photocell.

This is a Less Gear version of the THORN GAMMA 6 lantern .This has got a 20in wide canopy .

This is the last version of the THORN GAMMA 6 lantern .This has got a 20in wide canopy .This has got integral gear for a SON bulb with a Nema Socket photocell.

This was made in the 80s .

This has got a thick canopy with a 35W SOX bulb with a RTE P42 photocell. This lantern has got integral gear  and has has got a 10.5in wide canopy .

This is the last version of the THORN GAMMA 6 lantern .This has got a thinner canopy with a 35W SOX bulb with a SELC 841 Nema Socket photocell. This lantern has got integral gear.This has got a 10.5in wide canopy .

This is a THORN GAMMA 6 TRADITIONAL and this was made in the 80s.This has got integral gear for a SON bulb with a Nema Socket photocell.