Loop-corkscrew roller coaster.
Perhaps some folks remember the Loop Corkscrew Roller Coaster at the late lamented Rocky Point Park in Warwick, a "Rhode Island landmark since 1847." This postcard from the 1980s says it was New England's only one at the time. Anybody go on this "weird RI" ride? I sure as hell didn't. Scared to death of it.
A Rocky Point postcard sent in 1906.
(Cross-posted to weird_ri where there are many responses and comments!)