Most often associated with Johnson Light Twin’s. Circa early 20’s
Hope this helps.
best,
PM T2
He's livin' in his own private Idaho..... I hope to go out quietly in my sleep, like my grand-dad did..... and not screaming, like the passengers in his car...
I’ve seen that Johnson stand in 1928 literature but I don’t know when it came out. There were about 4 different signs on that stand. All had that same shape.