The Special Projects Laboratory as it appeared in 1943 (left) and 2017.
This page contrasts views of the Special Projects Laboratory (SPL) during its years of operation with photographs from its final days. NASA materials researcher Michael Cuy developed the concept and provided many of the images.
Exterior with Bicycle
A southward view of the JPSL in the summer of 1943.
The SPL exterior during demolition in November 2017.
From the North
The JPSL with newly added Cells 3 and 4 in September 1945.
The SPL viewed from the north in August 2017.
Visitors at the JPSL front entrance in July 1945.
Main entrance as seen in November 2017 during demolition.
Northwest view of the JPSL compressor in November 1947.
The compressor as it appeared in late 2017 as the SPL was demolished.
Addition to east end of JPSL in 1946.
East end of the SPL in November 2017.
Cell 1 engine testing in 1973.
Cell 1 in July 2017.
Radiator in SPL office in 1975.
Radiator in SPL office in October 2017.
From the South
View of the southern corner of the SPL from 1975.
Removal of siding from the SPL southern corner in October 2017.
Exhaust stack behind test cell in 1975.
Deteriorating exhaust stack in July 2017.