Material relating to Hammer's Historical Collection of Incandescent Lamps

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, front cover, recto

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, front cover, verso

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, title page, recto

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, title page, verso

Photograph of different exhibits in The William J. Hammer Historical Collection of Incandescent Electric Lamps, verso

Photograph of different exhibits in The William J. Hammer Historical Collection of Incandescent Electric Lamps, recto

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, [p. 15]

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 16

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 17

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 18

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 19

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 20

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 21

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 22

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 23

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 24

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 25

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 26

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 27

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 28

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 29

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, p. 30

Photograph of display case of incandescent electric lamps, recto

Photograph of display case of incandescent electric lamps, verso

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, endleaf, recto

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, endleaf, verso

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, back cover, recto

The William J. Hammer Historical Collection of Incandescent Lamps, booklet, back cover, verso

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, front cover, recto

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, front cover, verso

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, flyleaf, recto

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, flyleaf, verso

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 1

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 2

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 3

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 4

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 5

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 6

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 7

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 8

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, back cover, recto

The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, back cover, verso

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, front cover, recto

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, front cover, verso

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, flyleaf, recto

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, flyleaf, verso

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 1

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 2

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 3

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 4

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 5

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 6

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 7

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, p. 8

Written messages from William J. Hammer on endleaf, recto

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, endleaf, verso

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, back cover, recto

William J. Hammer's personal copy of The William J. Hammer Historical Collection of Incandescent Electric Lamps, booklet, back cover, verso

Photograph of incandescent lamp with notes written around it, recto

Photograph of incandescent lamp with notes written around it, verso

New York Electrical Society postcard, recto

New York Electrical Society postcard, verso

A unique collection of historic cables, clipping, p. 167

Interesting Canadian power plant at Niagara Falls, clipping, p. 168

A unique collection of historic cables, clipping, recto

A unique collection of historic cables, clipping, verso