Sold for A$60
T. K. (in an oval). Base Mark: 100. Patent stopper has a 5 on it. (Europe). Poison. Cobalt. Applied top. Grooves in neck, align with grooves in stopper to allow for safe pouring of the contents. Cobalt. 100 ml. 117 mm. 1900s
Near Mint. (9.4). Flake to bottom of stopper, may be the way it was made. Some dust which will clean off. Just a few minor scratches. Lovely item.. Estimate: $20-30