Organ pipes were standard demonstrations in the nineteenth century, and were sold by almost every apparatus manufacturer. The set of eight organ pipes (spanning an octave) by Lancelot of Paris in the Kenyon College collection has been made into a small organ. The individual pipes cost 44 francs in the 1870 catalogue. The demonstration pipe from St. Patrick's College shows the mechanism used to produce a sound in a reed organ pipe. This has been attributed to Rudolph Koenig.
The pipes from the College of Wooster and Colby College are examples of pipes with manometric flames attached one quarter, one half and three quarters of the way down the pipe. This was used to show nodes and antinodes when the pipe was speaking.
The Wooster pipe is one of the very few pieces of apparatus I have seen from the Chicago Laboratory Supply and Scale Company. This company was absorbed by the C.H. Stoelting Company in 1897.
REFERENCE: Thomas B. Greenslade, Jr., "Apparatus Manufacturers in Chicago,
ca. 1900", Rittenhouse, 13, 16-19 (1999)
Kenyon College St. Patrick's College, Maynooth, Ireland
College of Wooster
The two organ pipes below are at the University of Texas in Austin.
They 1900 catalogue of Max Kohl of Chemniz. Germany, describes the apirs
as "Two labial whistles, one giving the tones 1, 2, 3, and 4, the other
ghe tones 1, 3, 5 7"
||The unmarked reed mouthpiece at the left is at the University of Texas at Austin. It is inserted into the resonator that picks out the resonant frequency.|