This isn't a Michael Bang design if it is Ekenäs - he was only very briefly working for them, and was at Holmegaard by the time that this style of glass became big (the very end of the 60's, beginning of the 70's).
If your other lamp is in a really bright orange, that would really suggest that they're Italian as it seems to be a typical colour for 1970's cased glass lamps from that part of the world.
Edit: Also, Carnaby was designed primarily by Per Lütken. Michael Bang designed the stylisitcally similar Palet kitchenware range 2-3 years after the launch of Carnaby.