My little collection

Oldest incandescent: ELMA yellow 100W - 1980s
Oldest fluorescent: It is kinda compicated. I have a few that are 1950s - 70s but don't know exact ages so I'll link the 3 oldest I have. Crompton MCFER 20W made around 1968. Ecko 40W Warm White. Osram BGEC MCFE 40W brass ended.
Oldest mercury vapour: GEC Osram 125W MV E40 1961.
Oldest coated mercury: Wotan HQL80W 1981.
Oldest clear metal halide: Sylvania 400W /BD (date unknown).
Oldest HPS: Sylvania 150W HPS twin arc 1992 / 1991.
Oldest CFL: Philips SL Prismatic 25W B22
Oldest street light: Daylite Adelaide 4x 40W 4'x 1/2" 1950s
Oldest fluorescent fitting: 2 Henry Marlow 'twin london' 2x 40w 4'x 1/2". 1964 and 1967.

We will have to investigate them properly, but last week's haul included some pip top incandescents  and one is globe shaped with the pip ground off that could date back to 1912. 

My oldest lamps would be:

1. Westinghouse Mazda 1500w inside frost incandescent lamp (1925)
https://www.lighting-gallery.net/gallery/displayimage.php?album=5820&pos=2&pid=186943


2. Westinghouse Mazda AH-1 medium pressure mercury (1942)

https://www.lighting-gallery.net/gallery/displayimage.php?album=5894&pos=1&pid=187253

We will have to investigate them properly, but last week's haul included some pip top incandescents  and one is globe shaped with the pip ground off that could date back to 1912. 

We're still looking, but for now the front runner is this lovely old lamp, that might even date to the end of the 19th Century.!!

My oldest lamp is an Osarm HNT 202 F40T12 fluorescent tube, from 1955.

We've now got several old incandescent lampses that could be over 100 years old.  :
It's incredible to think that were hand-made in bulk before the days of automation. 
Their construction is just fascinating.!!