Abstract: Systems and methods of NFT features are disclosed wherein a computer performs the steps of, first retrieving an NFT token JSON file and determining at least one label stored in the JSON file. At least one registry is checked for display information associated with the at least one label. The NFT is then displayed in an NFT wallet according to the display information.

Abstract: Disclosed herein is an electrical brush (1) having a brush wear sensor (9) in the form of a loop (10, 11, 13) of insulated electrical conductor having two arms joined by a looped end, the arms leading from an upper surface of the brush to a depth (d) to be equivalent to the point at which brush wear is to be sensed. A pair of fine bores (5, 6) lead from the brush upper surface to meet a transverse hole (8) in a side face of the brush at the wear depth. Each arm of the sensor loop lies in a respective one of the fine bores with the looped end disposed in the transverse hole and joining the respective arms in the fine bores. Assembly preferably is by insertion of the free ends of the arms of the loop of insulated electrical conductor into the transverse hole and then separately into and through respective ones of the fine bores.