On Tue, Mar 8, 2022 at 07:58 AM, Tim O'Connor wrote:

All of which leads me to wonder, why are there no ETCHED BRASS coupler boxes? Thin sides
could be strong, and to scale. Paper thin resin overlays could be applied for extra detail.

.015" brass plus "paper thin" resin flash at .004" is .019". The Proto:HO Accumate box walls are already .025", IIRC. .006" isn't much to replicate the channel flange depth, although proper detail around the draft key might make it worthwhile.

Dennis Storzek