Hi Mark, I have a WO Zenithstar 66 with the L mount also (just bought it off here actualy thanks steve
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If your tripod has the threaded bolt still, even if the quick release is missing it should still screw on.
They are pretty uniform no matter the brand, and should serve well as a grab and go for a quick observing session.
Mine fits all of the 4 different el-cheapo tripods I have