Lamy was awarded a medal at the International Exhibition in London 1862: For the discovery of a new and abundant source of thallium and after heavy protest Crookes also received a medal: thallium, for the discovery of the new element.
I 1862 modtog Lamy en medalje ved den internationale udstilling i London "for opdagelsen af en ny og rigelig thalliumkilde", og efter kraftige protester modtog Crookes ligeledes en medalje "for opdagelsen af det nye grundstof thallium".