There were two styles of optional GM oil filters for the 265 (1955 version and 1956/57 version). Both look different from the filter in the first post.

1955 was a canister with hoses. It was mounted on the top right-front of the engine. This might have been a by-pass filter?
https://dl.dropboxusercontent.com/u/30524403/265%20oil%20filter%20%24_57.JPG
http://www.trifive.com/garage/55%20Chevy%20Assembly%20Manual/237-1-01.gif

1956-57 was a spin-on metal canister that "spun onto" a head that was directly connected to the block (no hoses) - lower left year side of the engine. This might have been a full-flow system with a by-pass valve in the filter "head"/boss.
https://dl.dropboxusercontent.com/u/30524403/265%201957%20oil%20filter%2019.jpg
http://www.567chevys.com/Images/ENGINE.JPG

The 56/57 265/283 came standard with a block-off plate for the optional oil filter (RPO 237).

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.