As above. The scope eye bell is marked 3-7 x 28 fixed reticule. There is a collar in front of the eye bell which has no markings and will not budge by hand.
There is a white dot on the tube in front of the collar like an alignment mark.
Just curious whether the eye bell is from another scope maybe or whether the collar is the mag. adjuster but seized.
Nothing found by Google. Thanks for looking.