Antique German glass Pycnometer Pyknometer Eichkorn Very Rare Museum quality

Description

The pycnometer left is scaled 0700 to 0840.
Original ad description:
Two hand produced pycnometers with different scales: one is 0700 to 0840, the other is 1000 to 1060
Both have scripted carton inserts written "Aräv - Pyknometer n. Eichkorn. 15°C. " one has "Tp:" before the "15°C".
No damage to either, they are both in their original soft protective lint packaging and carton boxes.
The one scaled 1000-1060 has a thinner upper tube and measures about 29.5 cm. The other is 30 cm in height. Both have sealed mercury bases, and just above a ground glass stoppered pear-shaped section of about 10-15 mL.
These were in the collection of my late father's antique laboratory glassware and devices.
The price is for one pycnometer.
Please visit my other ads; many shop, technical and lab & electronic things from my late father's estate.
Antique German glass Pycnometer Pyknometer Eichkorn.