3He-4He dilution refrigerator by Cryogenic Ltd., UK. A model purchased in the mid 90's was initially equipped with an openable mixing chamber inside which the test samples were immersed in the 3He-4He mixture  
Experimental setup for:
- AC susceptibility
 - electrical resistance and Hall effect
 - angular dependences of resistivity
 
Basic specification:
- base temperature Tb ≤ 80 mK
 - magnetic field B ≤ 14 T (16 T @ 2 K)
 - experimental space Φ < 52 mm
 - piezoelectric 360-degrees rotary step-drive
 - high resolution rotation control Δθ < 0.05 deg