This is my first observed occurance of a re-run film sequence. The Inept Carpenters sequence first appears in Pardon My Scotch (1935) and is re-used in the short Dizzy Detectives (1943). The sequence involves the Stooges as carpenters attempting to install a door. Moe climbs up on a table and asks for a board cut to a certain length. Larry and Curly cut the board, but also cut the table Moe is standing on. The door then accidentally falls over Moe and Curly and Larry use the circular saw to cut him out. They also cut the floor and Moe falls to the floor below. The sequence ends in Dizzy Detectives after Larry and Curly go downstairs when Moe says, "Come here".

I haven't researched it yet, but I have the feeling that beginning in the mid-1940's there is an upsurge of re-used sequences due to Curly's failing health. It appears there may be a treasure trove awaiting the re-used sequence hunter.

Also they could get away with re-using sequences back than. As you point out their was 8 years in between the two and this was before home video so the only people who would notice the re-use would be people who both saw the origional and remember a gag that they saw 8 years ago.

They get away with it NOW, Brian …
The only difference is it’s a much smaller intervening time period, and also a smaller length of filmed sequence. The movie “Star Trek VI: The Undiscovered Country” and “Star Trek: Generations” has a shared filmed sequence. When, in the Next Gen movie, the Klingon bird-of-prey is destroyed, they re-use the footage of a bird-of-prey being destroyed from the Trek-6 film. The only difference is that in the case of the Stooges, Columbia had to weave the sequence into the plot to a much greater degree than in the Trek case. This is why I feel that it is a worthy pursuit to document all the instances Columbia saved money at the expense of the Stooges.