Well, for what it's worth:
When I was a young boy we would often go to a large
sporting goods store in Bellingham, WA. They had a large gun
dept., and hunting gear, etc.
The rifles were against the wall, stock down and barrel up in one
long row. In front of this was a long glass showcase filled with
hand guns. A sales man ws always standing behind the counter.
This was the mid 1960s, but hey, maybe they'd been doing it
that way for years!
John Handley