Fascinating. Thanks Oguerrerod, that brochure scan gives proof that it was also called the Replica 1910 by Ledl (which I didn't know!). I also have a Ledl brochure (scan to follow) that refers to it as the Replica 100, which was the name I was looking for, so it must have gone by both names. Due to this I will award Oko the point now and consider this puzzle solved. Thanks.