roller reefing system

[anderson]

trying to identify a r.r. system, twin groove onto an open drum 10" dia . on the top of the drum is a small imprint of what looks like a seagull. the slider has a bush for a bearing.we need some spares?

 

[cpedw]

The seagull sound like Goiot, but I don't know their roller reefing - or if they did any.

Derek