What's a "CLASSIC DOUBLES"?
In 1987, when Olin Corp. decided to discontinue gun manufacturing (after having sold the New Haven, Conn. operations to U.S. Repeating Arms), they sold their Japanese factory to a newly formed company - Classic Doubles International. This new firm continued using the same factory, machinery, people, tooling, and designs to produce their versions of the 101, mechanically near identical, but cosmetically different. Most mechanical parts of the Classic Double are identical and interchangeable with the Winchester 101. Quality and workmanship levels are essentially the same. Due to lack of sufficient sales volume to support the operations, they went bankrupt after about 2 years.
In late 1987, Winchester/Olin discontinued importation of their Japanese shotgun models (Models 101 and 23). At that point, Classic Doubles International, Inc. became the sole importer of these shotguns. There were very few changes made during this changeover of importation. The late manufacture Classic Double shotguns (Models 101 and 201) do not have the Winchester trademark or definitive Winchester proofmark stamped on the barrels.
The Olin Corporation made the economic decision to stop production of the models 101 and 23 during 1987. The right to produce and sell these guns and most of Olin’s interest in the Olin-Kodensha plant were sold to the Classic Doubles International Corporation … their (Winchester’s) Classic Doubles logo was apparently also sold and appeared unaltered in Classic Doubles International catalogues, except for the deletion of the name “Winchester”.
Model 23 history
https://www.shotgunworld.com/threads/model-23-sxs-history.231320/ After being discontinued by Winchester, some Model 23's together with the Model 101 over & under were imported and sold under the Classic Doubles brand. The plant in Japan also produced a Model 201 SxS which I believe was to be the successor to the Model 23. The short lived Model 201 has a different frame design that appears to have a longer watertable somewhat reminiscent of the Winchester Model 21, as well as, changes to the locking lug and ejectors. IMO, the profile of the Model 201 more closely resembles the Winchester Model 21 than the Model 23.
The history of Parker Reproductions
https://shootingsportsman.com/parkerrepro/Parker Reproductions and the Winchester 101 and 23 were all made in the Kodensha plant until 1988, the 23 from 1978.
I couldn't find confirmation but I believe Guns Unlimited in Omaha
also bought the end of the Parker Reproductions inventory about 2002.