Box containing glass accessories for Polarograph electrode module. One cylindrical glass vessel with flared rim at open end. Two glass cylinders, possibly capillary rods. Writing on box exterior suggests contents are 209 01 018 = 1 Sample Cell and 209 99 001 = 2 Dropping mercury electrode, 7cm. 209 01 024/209 01 026 – Exhaust Liquid Trap is on the label taped to the box lid and written on the box exterior but this has been crossed out. The Exhaust Liquid Trap is in 1985-1527 pt9/7. Polarograph electrode module accessories 1960-1979