Is that worthwhile? Certainly! Especially if one needs quite a quantity of them. What comes first, as always, is a proper drawing.
The impetus for the project was the weather — windfall had felled one of the LGB signals on a RhB Forum member’s layout and he was looking for a more RhB prototypical replacement. I still have a good selection of the HOm RhB signals from Bänninger on hand and used those for the first dimensions. Keith then looked for suitable material and built a first test sample. With his materials list I adjusted the drawings as required, with slight deviations from the type he used as his prototype.
Naturally we had a close look at all the commercial samples that are available in 1:22.5 scale. The article in GARTENBAHNprofi 6/2007 was a great help.