Early
Set of Large Brass Parabolic Reflectors for the Physics of Heat and Sound,
c. 1870 Early physical
demonstration set, used for heat and sound experiments. Ø 19 5/8 in.
each. Good original condition!
Estimate: € 1,000/2,000
US$ 1,550/3,100
Reserve: € 750/US$ 1,160
